Agilent 81480/ 680/ 640A Tunable Lasers
Agilent 81682/ 642A Tunable Lasers
Technical Specifications
February 2002
The 81480A, 81640A, 81680A, 81642A and 81682A
Tunable Laser modules with their built-in wavelength control
loop push today's performance limits. As they are mode-hop
free tunable with continuous output power, they qualify for
the test of the most critical DWDM components.
Tunable lasers for all gain bands
The Agilent 81680A and 81682A
modules operate in the 1550 nm band
whereas the Agilent 81640A covers the
wavelength range from 1510 nm to
1640 nm and the Agilent 81480A covers
the wavelength range from 1370nm to
1480nm.
Optimum tuning precision for the test of critical dense-WDM devices
The Agilent 81480A 81640A, 81642A
81680A and 81682A Tunable Laser
modules with their built-in wavelength
control loop push today's performance
limits. As they are all mode-hop free
tunable with continuous output power,
they qualify for the test of the most
critical DWDM components. All three
modules fit into the bottom slot of the
8164A mainframe.
Test of optical amplifiers and passive components
Polarization Maintaining Fiber for the test of integrated optical devices
The 81480A, 81640A, 81642A, 81680A
and 81682A modules are ideally
constructed to characterize integrated
optical devices. Their Panda PMF output
ports provide a well defined state of
polarization to ensure constant
measurement conditions on waveguide
devices. A PMF cable easily connects an
external optical modulator.
Low spontaneous emission for maximum measurement range
The 81480A, 81640A and 81680A
tunable laser modules are equipped with
two optical outputs. One output port
delivers a signal with ultra-low source
spontaneous emission (SSE). It enables
accurate crosstalk measurement of
dense-WDM system components with
many channels at narrow spacing.
Just a power meter module is sufficient
to characterize steep notch filters such
as Fiber Bragg Gratings.
most complex configurations to the
target wavelengths and power levels, just
by dialing or using the vernier keys. The
81689A is available with both, standard
single-mode fiber and Panda- type PMF.
Each 8164A mainframe can host up to
four units of the 81689A in its upper
slots.
The 8164A, 81480A, 81640A, 81642A,
81680A, 81682A and 81689A are
produced to ISO 9001 international
quality system standard as part of
Agilent's commitment to continually
increasing customer satisfaction through
improved quality control.
Specifications describe the instrument's
warranted performance. They are verified
at the end of a 2 m long patchcord and
are valid after warm-up and for the
stated output power and wavelength
ranges.
Each specification is assured by
thoroughly analyzing all measurement
uncertainties. Supplementary
performance characteristics describe the
instrument’s non-warranted typical
performance.
The 81682A and 81642A Tunable Laser
module provides the high stimulus power
needed to test today's optical amplifiers.
An optional, built-in optical attenuator
allows an output power dynamic range of
more than 60 dB. Its excellent
wavelength precision makes it a multipurpose instrument for all kinds of
component test.
The second output port provides
increased optical power and allows
adjustment by more than 60 dB through a
built-in optical attenuator.
Compact module for multichannel test
A variable amount of the compact, yet
fully remote controlled Agilent 81689A
Tunable Laser modules, in combination
with the 81682A and 81642A high
power Tunable Laser, is the ideal solution
to characterize optical amplifiers for use
in dense-WDM applications. Furthermore
the 81689A allows a realistic multichannel test bed for dense-WDM
transmission systems to be set up.
Its continuous, mode-hop free tuning
makes it quick and easy to set even the
Every instrument is delivered with a
commercial certificate of calibration and
a detailed test report.
For further details on specifications, see
the Definition of Terms in Appendix C of
the Tunable Laser User's Guide.
81480A Tunable Laser
Wavelength range 1370 nm to 1480 nm
Wavelength resolution 0.1 pm, 15 MHz at 1450 nm
Mode-hop free tuning range
Absolute wavelength accuracy
Relative wavelength accuracy
Wavelength repeatability
Wavelength stability
(typ., 24 h at const. temp.)
Tuning speed (typ. for a 1/10/100 nm step) 400 ms/ 600 ms/ 2.8 s
Linewidth (typ.), coherence control off
Effective linewidth (typ.), coherence ctrl. on
Output power
[3]
(continuous power during tuning)
Minimum output power
Power stability [3] ±0.01 dB, 1 hour (1420nm-1480nm)
Power repeatability (typ.) [3][9] ±0.01 dB
Power linearity [3] ±0.1 dB (1420nm-1480nm)
Power flatness versus wavelength
Side-mode suppression ratio (typ.)
Signal to
source spontaneous emission ratio
Signal to total
Source spontaneous emission ratio
Relative intensity noise (RIN, typ.)
[2][9]
[9]
[3]
Agilent 81480A
[9]
[1] [2] [9]
[1] [2] [9]
full wavelength range
±0.01 nm
±5 pm, typ. ±2 pm
±1 pm, typ. ±0.5 pm
< ±1 pm
[2]
100 kHz
> 50 MHz (1420 - 1470 nm), at maximum flat output power)
Output 1 (low SSE) Output 2 (high power)
> -4.5 dBm peak typ
> -7 dBm (1420 – 1470 nm)
> -13 dBm (1370 – 1480 nm)[9]
> +5.5 dBm peak typ
> +3 dBm (1420 - 1470 nm)
> -3 dBm (1370 - 1480 nm)[9]
-13 dBm -3 dBm
(-60 dBm in attenuation mode)
typ. ±0.01 dB, 1 hour (1370nm-1420nm) [9]
typ. ±0.03 dB, 24 hours
±0.3 dB (1420nm-1480nm)
[3] [9]
[4] [8] [9]
[5] [8]
[6] [8]
typ. ±0.1dB (1370nm-1420nm) [9]
±0.2 dB, typ. ±0.1 dB
(1420-1480nm)
±0.2 dB typ (1370nm-1420nm)
> 40 dB (1380 - 1480 nm)
> 61 dB/nm
[7]
(1420 – 1470 nm)
> 55 dB/nm
[7] [9]
(typ., 1370 – 1480 nm)
> 58 dB
(1420 – 1470 nm)
[7]
typ. ±0.3 dB (1370nm-1420nm) [9]
±0.3 dB, typ. ±0.2 dB
(1420nm-1480nm)
±0.3 dB typ (1370nm-1420nm)
> 40 dB/ nm
(1420 – 1470 nm)
> 35 dB/ nm
(1370 – 1480 nm)
> 28 dB
(typ., 1420 - 1470 nm )
> 53 dB
[8]
-145 dB/Hz (1420 - 1470 nm)
(typ., 1370 - 1480 nm)
[7] [9]
[1] Valid for one month and within a ±5 K temperature range after automatic wavelength zeroing.
[2] At CW operation. Measured with wavelength meter based on wavelength in vacuum.
[3] Applies to the selected output.
[4] Measured by heterodyning method.
[5] Measured with optical spectrum analyzer at 1 nm resolution bandwidth.
[6] Measured with optical spectrum analyzer.
[7] Measured with fiber Bragg grating to suppress the signal.
[8] Output power as specified per wavelength range and output port.
[9] wavelength must not be equal to any water absorption line
continuous sweep mode 81480A
mode-hop free span 1420-1470nm at flat output power >=0 dBm
81680A Tunable Laser for the test of critical dense-WDM components
Agilent 81680A
Wavelength range 1460 nm to 1580 nm
Wavelength resolution 0.1 pm, 12.5 MHz at 1550 nm
Mode-hop free tuning range full wavelength range
Absolute wavelength accuracy
Relative wavelength accuracy
Wavelength repeatability
Wavelength stability
(typ., 24 h at const. temp.)
Tuning speed (typ. for a 1/10/100 nm step) 400 ms/ 600 ms/ 2.8 s
Linewidth (typ.), coherence control off
Effective linewidth (typ.), coherence ctrl. on
Output power
[3]
(continuous power during tuning)
Minimum output power
Power stability
[3] [9]
Power repeatability (typ.)
Power linearity
[3]
Power flatness versus wavelength
Side-mode suppression ratio (typ.)
Signal to source spontaneous emission ratio
Signal to total source spontaneous emission ratio
Relative intensity noise (RIN, typ.)
[1] [2]
[1] [2]
[2]
[2]
±0.01 nm
±5 pm, typ. ±2 pm
±1 pm, typ. ±0.5 pm
≤ ±1 pm
100 kHz
> 50 MHz (1480 –1580 nm, at maximum flat output power)
Output 1 (low SSE) Output 2 (high power)
≥ –4 dBm peak typ.
≥ –6 dBm (1520 –1570 nm)
≥ –10 dBm (1480 –1580 nm)
≥ –13 dBm (1460 – 1580 nm)
[3]
–13 dBm –3 dBm
±0.01 dB, 1 hour
[3]
typ. ±0.03 dB, 24 hours
±0.01 dB
±0.1 dB ±0.3 dB
[3]
[4] [8]
[5] [8]
[6] [8]
[8]
±0.2 dB, typ. ±0.1 dB ±0.3 dB, typ. ±0.15 dB
≥ 40 dB (1480 – 1580 nm)
≥ 63 dB/ nm
(1520 – 1570 nm)
≥ 58 dB/ nm
(typ., 1480– 1580 nm)
≥ 53 dB/ nm
[7]
[7]
[7]
(typ., 1460 – 1580 nm)
≥ 60 dB
(1520 – 1570 nm)
≥ 50 dB
(typ., 1460 – 1580 nm)
[7]
[7]
–145 dB/Hz (1480 – 1580 nm)
≥ 6 dBm peak typ.
≥ 5 dBm (1520 – 1570 nm)
≥ 1 dBm (1480 – 1580 nm)
≥ –3 dBm (1460 –1580 nm)
(–60 dBm in attenuation mode)
≥45 dB/ nm
(1520 – 1570 nm)
≥ 40 dB/ nm
(1480 –1580 nm)
≥ 35 dB/ nm
(1460 – 1580 nm)
≥ 30 dB
(typ., 1520 – 1570 nm )
[1]
Valid for one month and within a ±5 K temperature range after automatic wavelength zeroing.
Wavelength Zeroing is an internal function that performs an automatic self-adjustment.
[2]
At CW operation. Measured with wavelength meter based on wavelength in vacuum.
[3]
Applies to the selected output.
[4]
Measured by heterodyning method.
[5]
Measured with optical spectrum analyzer at 1 nm resolution bandwidth.
[6]
Measured with optical spectrum analyzer.
[7]
Measured with Fiber Bragg Grating to suppress the signal.
[8]
Output power as specified per wavelength range and output port.
[9]
Warm up time 1 hour
81640A Tunable Laser for the test of critical components in both dense-WDM bands
Agilent 81640A
Wavelength range 1510 nm to 1640 nm
Wavelength resolution 0.1 pm, 12.5 MHz at 1550 nm
Mode-hop free tuning range full wavelength range
Absolute wavelength accuracy
Relative wavelength accuracy
Wavelength repeatability
Wavelength stability
(typ., 24 h at const. temp.)
Tuning speed (typ. for a 1/10/100 nm step) 400 ms/ 600 ms/ 2.8 s
Linewidth (typ.), coherence control off
Effective linewidth (typ.), coherence ctrl. on
Output power
[3]
(continuous power during tuning)
Minimum output power
Power stability
[3] [9]
Power repeatability (typ.)
Power linearity
[3]
Power flatness versus wavelength
Side-mode suppression ratio (typ.)
Signal to source spontaneous emission ratio
Signal to total source spontaneous emission ratio
Relative intensity noise (RIN, typ.)
[1] [2]
[1] [2]
[2]
[2]
±0.015 nm
±7 pm, typ. ±3 pm
±1 pm, typ. ±0.5 pm
≤ ±1 pm
100 kHz
> 50 MHz (1520 –1620 nm, at maximum flat output power)
Output 1 (low SSE) Output 2 (high power)
≥ –5 dBm peak typ.
≥ –7 dBm (1530 – 1610 nm)
≥ –9 dBm (1520 – 1620 nm)
≥ –13 dBm (1510 –1640 nm)
[3]
–13 dBm –5 dBm
≥ 4 dBm peak typ.
≥ 2 dBm (1530 –1610 nm)
≥ 0 dBm (1520 – 1620 nm)
≥–5 dBm (1510 – 1640 nm)
(–60 dBm in attenuation mode)
±0.01 dB, 1 hour
typ. ±0.03 dB, 24 hours
[3]
[3]
[4] [8]
[5] [8]
[6] [8]
[8]
±0.01 dB
±0.1 dB ±0.3 dB
±0.2 dB, typ. ±0.1 dB ±0.3 dB, typ. ±0.15 dB
≥ 40 dB (1530 – 1610 nm)
≥ 60 dB/nm
(1530 –1610 nm)
[7]
≥ 55 dB/nm
(typ., 1520 – 1620 nm)
≥ 50 dB/nm
(typ., 1510– 1640 nm)
≥ 55 dB
(1530 – 1610 nm)
[7]
≥ 45 dB
(typ., 1510 – 1640 nm)
[7]
[7]
[7]
≥ 45 dB/nm
(1530 – 1610 nm)
≥ 40 dB/nm
(1520 – 1620 nm)
≥ 35 dB/nm
(1510 – 1640 nm)
≥ 27 dB
(typ., 1530 – 1610 nm)
–145 dB/Hz (1530 – 1610 nm)
[1]
Valid for one month and within a ±5 K temperature range after automatic wavelength zeroing.
Wavelength Zeroing is an internal function that performs an automatic self-adjustment.
[2]
At CW operation. Measured with wavelength meter based on wavelength in vacuum.
[3]
Applies to the selected output.
[4]
Measured by heterodyning method.
[5]
Measured with optical spectrum analyzer at 1 nm resolution bandwidth.
[6]
Measured with optical spectrum analyzer.
[7]
Measured with Fiber Bragg Grating to suppress the signal.
[8]
Output power as specified per wavelength range and output port.
[9]
Warm up time 1 hour
81682A Tunable Laser for the test of optical amplifiers and passive components
Agilent 81682A
Wavelength range 1460 nm to 1580 nm
Wavelength resolution 0.1 pm, 12.5 MHz at 1550 nm
Mode-hop free tuning range full wavelength range
Absolute wavelength accuracy
Relative wavelength accuracy
Wavelength repeatability
Wavelength stability
(typ., over 24 h at constant temperature)
Tuning speed (typ. for a 1/10/100 nm step) 400 ms/ 600 ms/ 2.8 s
Linewidth (typ.), coherence control off
Effective linewidth (typ.), coherence control on
Output power (continuous power during tuning)
[3]
for #003
Minimum output power
with option #003
Power stability
[3]
[8]
Power repeatability (typ.) ±0.01 dB
Power linearity/ with #003 (typ.)
Power flatness versus wavelength
with option #003
[3]
Side-mode suppression ratio (typ.)
Signal to source spontaneous emission ratio
Signal to total source spontaneous emission ratio (typ.)
Relative intensity noise (RIN, typ.)
[1] [2]
[1] [2]
[2]
[2]
±0.01 nm
±5 pm, typ. ±2 pm
±1 pm, typ. ±0.5 pm
< ±1 pm
100 kHz
> 50 MHz (1480 – 1580 nm, at max. flat output power)
≥ 8 dBm peak typ.
≥ 6 dBm (1520 –1570 nm)
≥ 2 dBm (1480 – 1580 nm)
≥–3 dBm (1460 – 1580 nm)
reduce by 1.5 dB
–3 dBm
–4.5 dBm (–60 dBm in attenuation mode)
±0.01 dB, 1 hour
typ. ±0.03 dB, 24 hours
[3]
±0.1 dB/ ±0.2 dB
±0.2 dB, typ. ±0.1 dB
±0.3 dB, typ. ±0.2 dB
[4] [7]
[5] [7]
≥ 40 dB (1480 –1580 nm)
≥ 45 dB/ nm (1520 – 1570 nm)
≥ 40 dB/ nm (1480 – 1580 nm)
≥ 35 dB/ nm (1460 – 1580 nm)
[6] [7]
[7]
≥ 30 dB (1520 – 1570 nm)
–145 dB/Hz (1480 –1580 nm)
[1]
Valid for one month and within a ±5 K temperature range after automatic wavelength zeroing.
Wavelength Zeroing is an internal function that performs an automatic self-adjustment.
[2]
At CW operation. Measured with wavelength meter based on wavelength in vacuum.
[3]
Option #003: built-in optical attenuator.
[4]
Measured by heterodyning method.
[5]
Measured with optical spectrum analyzer at 1 nm resolution bandwidth.
[6]
Measured with optical spectrum analyzer.
[7]
Output power as specified per wavelength range.
[8]
Warm up time 1 hour
81642A Tunable Laser
Agilent 81642A
Wavelength range 1510nm to 1640mn
Wavelength resolution 0.1 pm, 12.5 MHz at 1550 nm
Mode-hop free tuning range Full wavelength range
Absolute wavelength accuracy
Relative wavelength accuracy
Wavelength repeatability
Wavelength stability
[2]
Tuning speed (typ. for a 1/10/100 nm step) 400ms/600ms/2.8s
Linewidth (typ.), coherence control off
Effective linewidth (typ.), coherence control on
Output power (continuous power during tuning)
for #003
Minimum output power
with option #003
Power stability
Power repeatability (typ.) ±0.01 dB
Power linearity
[8]
[3]
Power flatness versus wavelength
Side-mode suppression ratio (typ.)
Signal to source spontaneous emission ratio
Signal to total source spontaneous emission ratio (typ.)
Relative intensity noise (RIN, typ.)
[1] [2]
[1] [2]
[2]
±0.015nm
±7 pm, typ. ±3 pm
±1 pm, typ. ±0.5 pm
< ±1 pm (typ., 24 h at const. temp.)
100 kHz
> 50 MHz (1520-1620 nm, at maximum flat output power)
[3]
≥ +7 dBm peak typ.
≥ +6 dBm (1560 -1610 nm)
≥ +4 dBm (1530 -1610 nm)
≥ +2 dBm (1520 -1620 nm)
≥ - 3 dBm (1510 -1640 nm)
[3]
reduced by 1.5dB
-3 dBm
-4.5 dBm (60-dBm in attenuation mode)
±0.01 dB, 1 hour, typ. ±0.03 dB, 24 hours
±0.3 dB
[3]
[4] [7]
[5] [7]
±0.3 dB, typ. ±0.15 dB
≥ 40 dB (1530 – 1610 nm)
≥45 dB/nm (1530 –1620 nm)
≥40 dB/nm (1520 – 1620 nm)
≥35 dB/nm (1510 –1640 nm)
[6] [7]
≥ 27 dB
(typ.,1530 – 1610 nm)
[7]
-145 dB/Hz (1530 – 1610 nm)
[1]
Valid for one month and within a ±5 K temperature range after automatic wavelength zeroing.
[2]
At CW operation. Measured with wavelength meter based on wavelength in vacuum.
[3]
Option#003: built-in optical attenuator.
[4]
Measured by heterodyning method.
[5]
Measured with optical spectrum analyzer at 1 nm resolution bandwidth.
[6]
Measured with optical spectrum analyzer.
[7]
Output power as specified per wavelength range.
[8]
Warm up time: 1 hour
Supplementary performance characteristics
Modulation
Internal digital modulation
50% duty cycle, 200 Hz to 300 kHz.
Modulation output:
TTL reference signal.
External digital modulation
> 45% duty cycle, fall time
< 300 ns, 200 Hz to 1 MHz.
Modulation input:
TTL signal.
External analog modulation
≥ ±15% modulation depth,
5 kHz to 20 MHz (for Agilent 81689A:
5 kHz to 1 MHz).
Modulation input:
5 Vp-p
External wavelength locking
(Agilent 81480/
81680A/640A/682A/642A)
> ±70 pm at 10 Hz
> ±7 pm at 100 Hz.
Modulation input:
± 5 V
Coherence control
(81480A/81640A/81642A/ 80A/ 82A)
For measurements on components with
2 m long patchcords and connectors
with 14 dB return loss, the effective
linewidth results in a typical power
stability of < ±0.025 dB over
1 minute by drastically reducing
interference effects in the test setup.
[1]
[1]
Continuous sweep mode
(81480A/81640A/81462A/ 80A/ 82A)
Tuning velocity adjustable to
40 nm/sec, 5 nm/sec and 0.5 nm/sec.
Mode-hop free span
Agilent 81480A:
1420-1470 nm at flat output power
≥0 dBm
Agilent 81680A/82A:
1520-1570 nm at flat output power
≥ 3dBm
Agilent 81640A:
Any 50 nm within 1520-1620 nm at
flat output power ≥0 dBm
Agilent 81642A:
Any 50 nm within 1520-1620 nm at
flat output power ≥2 dBm
Ambient temperature within +20 °C
and +35 °C.
General
Output isolation (typ.):
50 dB.
Return loss (typ.):
60 dB (options 022, 072);
40 dB (options 021, 071).
Polarization maintaining fiber
(Options 071, 072)
Fiber type:
Panda.
Orientation:
TE mode in slow axis, in line with
connector key.
Extinction ratio: 16 dB typ.
Laser class:
Class IIIb according to FDA 21 CFR
1040.10, Class 3A according to IEC
825 - 1; 1993.
Recommended re-calibration period:
2 years.
Environmental
Storage temperature:
–40 °C to + 70 °C.
Operating temperature:
10 °C to 35 °C.
Humidity:
< 80 % R.H. at 10 °C to 35 °C.
Specifications are valid in
non-condensing conditions.
[1]
81640A/ 80A/ 82A:
displayed wavelength represents average
wavelength while digital modulation is
active.
Warm-up time:
< 20 min
immediate operation after boot-up.
8164A Lightwave Measurement System
Display:
Active color LCD, 600 x 400 pixels
visible. VGA connector for external
monitor.
GPIB Interface:
GPIB interface function code: SH1, AH1,
T6, L4, SR1, RL1, PP0, DC2, DT0, C0.
RS-232C Interface:
Max. baud rate: 115,200 bps
Parallel Printer Interface:
Centronics
PCCard slot:
One type I, II and III compliant with PC
Card Standard
PCMCIA 2.1/JEIDA 4.1
External keyboard:
PS/2 connector
Data Storage:
Internal Hard Disk Drive, 2000 MB
ATA PC and SRAM PC cards according to
PCMCIA type I, II and III.
Power: 100 to 240 Vrms, ±10 %, 280
VA max.
Dimensions: 145 mm H, 426 mm W,
545 mm D
(5.8" x 16.9" x 21.6")
Weight: net, 20 kg (45 lb.), shipping, 23
kg (51 lb.), including modules.
Built-in Application:
Software 2.0 enables the measurement
of loss vs. wavelength of up to 8
channels with trace display and data
storage. This software version
supports full performance of the laser in
stepped mode.
Listed options
Option 003: built-in optical attenuator,
60 dB attenuation
(81682A; included with 81640A and
81680A).
Option 021: standard single mode fiber,
straight contact output connector.
Option 022: standard single mode fiber,
angled contact output connector.
Option 071: polarization maintaining
fiber, straight contact output connector
(81640A, 81680A, 81682A).
Option 072: polarization maintaining
fiber, angled contact output connector
(81640A, 81680A, 81682A).
Option 1CM: rack mount kit without
front handles for the 8164A mainframe.
Option 1CN: front handles for the
8164A mainframe.
Agilent 81645A Filler Module:
The 81645A filler module is required to
operate the 8164A mainframe if it is
used without an 81640A/80A/82A
tunable laser module.
Laser Safety Information
All laser sources specified by this data
sheet are classified as Class 1M
according to IEC 60825-1 (2001).
All laser sources comply with 21 CFR
1040.10 except for deviations pursuant
to Laser Notice No. 50, dated 2001-July-
26.
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Product specifications and descriptions in this document subject to change without notice. Compact Tunable Laser Modules
Copyright © 2002 Agilent Technologies p/n 5988-3675EN
February, 12 2002
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Technical Specifications
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Agilent 8164A Lightwave Measurement System
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