COMMUNICATIONS COMPONENTS
Broadband (Fabry-Perot) Wavelength Locker
Key Features
• Extremely low temperature dependence
• High accuracy
• Periodic locking covers all channels (one part number for
any channel to reduce inventory)
• Temperature sensor included for better locking accuracy if
necessary
• Operation over C and L bands
Applications
• Precise laser locking for DWDM
transmitter
• Wavelength monitoring
• Laser stabilization for tunable laser
module
• DWDM channel frequency and
optical power monitoring
Compliance
The Broadband (Fabry-Perot) Wavelength Locker is a thermally stable, air-gapped
etalon-based device. It can be used to stabilize laser sources for high-density
WDM applications and tunable lasers. 50 GHz and 100 GHz FSR designs are the
standard products available. These two FSR models are available with offsets of
25 GHz and 50 GHz, respectively, in order to support interleaved architectures. All
FSR and ITU offset variations come in the same industry standard package.
The Broadband Wavelength Locker has a wide capture range and excellent
wavelength accuracy. The temperature sensor, included with every locker, can be
used to calibrate out thermal effects when even higher wavelength accuracy is
required or when using a very narrow FSR locker.
• Telcordia 1221
NORTH AMERICA
:
800 498-JDSU (5378)
WORLDWIDE
:
+800 5378-JDSU
WEBSITE
:
www.jdsu.com
WAVELENGTH LOCKER, BROADBAND
2
Theoretical Frequency Response: 50 GHz
Etalon Photodiode (dB)
2.000
Diode Photocurrent (dB)
0.000
-
-2.000
-
-4.000
-
-6.000
-
-8.000
-
-10.000
38.5
Reference Photodiode (dB)
39.0
39.5
ITU Channel (GHz)
40.0
40.5
Theoretical Frequency Response: 100 GHz
Etalon Photodiode (dB)
2.000
Diode Photocurrent (dB)
0.000
-
-2.000
-
-4.000
-
-6.000
-
-8.000
-
-10.000
-
-12.000
-
-14.000
38.5
39.0
Reference Photodiode (dB)
39.5
ITU Channel (GHz)
40.0
40.5
WAVELENGTH LOCKER, BROADBAND
3
Dimensions Diagram
8.5 mm
40.0 mm
(Specifications in mm unless otherwise noted.)
21.0 mm
15.0 mm
18.0 mm
34.0 mm
18.0 mm
Minimum
Pin 6
Pin 1
Ø = 0.45 mm
5.0 mm
2.54 mm
5.0 mm
10.0 mm
2.54 mm x 5
8.5 mm
Pinout
Pin
1
2
3
4
5
6
Description
Monitor PD1 anode (+)
Etalon PD2 anode (+)
PD1, PD2 cathode (-)
Temperature sensor supply voltage
Temperature sensor monitor
Temperature sensor ground
Optical Schematic
Input Fiber
Etalon Out
Splitter
Etalon
PD2
Monitor Out
PD1
WAVELENGTH LOCKER, BROADBAND
4
Specifications
Parameter
Wavelength range
Center wavelength
Center channel accuracy over temperature,
polarization, and EOL
1
Polarization dependent channel accuracy
(included in total center channel accuracy)
Acquisition range (capture range)
from nominal ITU center frequency
Locking slope at ITU point
Optical operation power range (P
in
)
~ input to module
Optical return loss
3
Optical input power for damage
Photodetector calibration offset
Photocurrent
Responsivity of reference (PD1)
Responsivity of etalon (PD2)
Photodetector dark current
Temperature sensor supply voltage at 130 µA
Temperature sensor monitor
Package dimensions (W x H x D)
Electrical pin spacing (center to center)
Fiber type
Operating temperature
Storage temperature
Humidity (non-condensing)
50 GHz Free Spectral Range
1520 to 1620 nm
Maximum
Maximum
Typical
Typical
Typical
Minimum
Minimum
Maximum
0.16 to 0.32 A/W
0.16 to 0.40 A/W
Typical
Maximum
Typical
-30 to 12 GHz
80 dB/nm
100 GHz Free Spectral Range
1520 to 1620 nm
ITU grid (standard) or as specified
±2.5 GHz
2
0.8 GHz
-65 to 25 GHz
55 dB/nm
-25 to 7 dBm
50 dB
10 mW (CW)
±2.5 dB
0.08 to 0.16 A/W
0.08 to 0.28 A/W
0.3 nA at 5 V
R
, 25 °C
0.5 nA at 5 V
R
, 25 °C
5 to 30 V
10 mV/°C
40 x 8.5 x 21 mm
2.54 mm
SMF-28
0 to 70 °C
-40 to 85 °C
0 to 85% RH
Note: Data for temperature sensor reported at three temperatures at one wavelength (ITU 40). All three temperatures (0, 23 and 70 °C) are ±3°C.
1. Calibrated at channel of use.
2. Approaching ±1.25 GHz with temperature sensor.
3. Connected with a 5% tap coupler.
WAVELENGTH LOCKER, BROADBAND
Ordering Information
For more information on this or other products and their availability, please contact your local JDSU account manager or
JDSU directly at 1-800-498-JDSU (5378) in North America and +800-5378-JDSU worldwide or via e-mail at
customer.service@jdsu.com.
Sample: WVL-2B1010410
WVL-2B10
Code
10
20
50
60
Channel Alignment
100 GHz on ITU grid
100 GHz with 50 GHz offset
to
ITU grid
50 GHz on ITU grid
50 GHz with 25 GHz offset
to
ITU grid
Code
1
4
Fiber Type
250 µm fiber (SMF-28)
2
900 µm
tight
buffer (SMF-28)
Code
1
Fiber Length
1 meter
3
Code
0
2
3
4
5
Connector
1
No
connector
FC/SPC
FC/APC
SC/SPC
SC/APC
1. Insertion loss and return loss change depend on connector type.
2. Not available with connector.
3. Tolerance +10 cm, -0 cm
SMF-28 is a registered trademark of Corning Incorporated.
ST is a registered trademark of Lucent Technologies.
Telcordia is a registered trademark of Telcordia Technologies Incorporated.
All statements, technical information and recommendations related to the products herein are based upon information believed to be
reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any
inaccuracies. The user assumes all risks and liability whatsoever in connection with the use of a product or its application. JDSU reserves
the right to change at any time without notice the design, specifications, function, fit or form of its products described herein, includ-
ing withdrawal at any time of a product offered for sale herein. JDSU makes no representations that the products
herein are free from any intellectual property claims of others. Please contact JDSU for more information. JDSU and the JDSU logo are
trademarks of JDS Uniphase Corporation. Other trademarks are the property of their respective holders. ©2006 JDS Uniphase
Corporation. All rights reserved. 10114013 Rev. 003 03/06 WVL.DS.CC.AE
NORTH AMERICA
:
800 498-JDSU (5378)
WORLDWIDE
:
+800 5378-JDSU
WEBSITE
:
www.jdsu.com
