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 and ultra DWDM transmitter • Wavelength monitoring • Laser stabilization for tunable laser module • DWDM channel frequency and optical power monitoring The broadband (Fabry-Perot) wavelength locker is a thermally stable, air-gapped, etalon-based device that can be used to stabilize laser sources for high-density WDM applications and tunable lasers. Our 50 GHz, free spectral range (FSR) designs are industry-standard products. 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. Compliance • Telcordia 1221 NORTH AMERICA : 800 498-JDSU (5378) WORLDWIDE : +800 5378-JDSU WEBSITE : www.jdsu.com BROADBAND (FABRY-PEROT ) WAVELENGTH LOCKER 2 Theoretical Frequency Response: 50 GHz Etalon Photodiode (dB) Reference Photodiode (dB) Diode Photocurrent (dB) 2.000 0.000 --2.000 --4.000 --6.000 --8.000 --10.000 38.5 39.0 39.5 40.0 ITU Channel (GHz) Optical Schematic Input Fiber Etalon Out Splitter Etalon PD2 Monitor Out PD1 40.5 BROADBAND (FABRY-PEROT ) WAVELENGTH LOCKER 3 (Specifications in mm unless otherwise noted.) Dimensions Diagram 21.0 mm 8.5 mm 40.0 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 Pinout Pin Description 1 2 3 4 5 6 Monitor PD1 anode (+) Etalon PD2 anode (+) PD1, PD2 cathode (-) Temperature sensor supply voltage Temperature sensor monitor Temperature sensor ground 8.5 mm BROADBAND (FABRY-PEROT ) WAVELENGTH LOCKER 4 Specifications Parameter 50 GHz Free Spectral Range Wavelength range Center wavelength Center channel accuracy over temperature, polarization, and EOL1 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 (Pin) ~ input to module Optical return loss3 Optical input power for damage Photodetector calibration offset Photocurrent Responsivity of reference (PD1) Responsivity of etalon (PD2) Photodetector dark current Maximum Maximum 1520 to 1620 nm ITU grid (standard) or as specified ±2.5 GHz2 0.8 GHz Typical Typical Typical Minimum Minimum Maximum -30 to 12 GHz 80 dB/nm -25 to 7 dBm 50 dB 10 mW (CW) ±2.5 dB 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 (noncondensing) Typical Maximum Typical 0.16 to 0.32 A/W 0.16 to 0.40 A/W 0.3 nA at 5 VR, 25°C 0.5 nA at 5 VR, 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 five percent tap coupler. BROADBAND (FABRY-PEROT ) WAVELENGTH LOCKER 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 [email protected] Sample: WVL-2B1050410 WVL-2B1050 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 NORTH AMERICA : 800 498-JDSU (5378) WORLDWIDE : +800 5378-JDSU WEBSITE : www.jdsu.com Product specifications and descriptions in this document subject to change without notice. © 2008 JDS Uniphase Corporation 10114013 004 0908 WVL.DS.CC.AE September 2008 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.