COMMUNICATIONS COMPONENTS 2.5 Gb/s Bias-Free Modulator with Integral Attenuator Key Features • Bias-free operation for fast transmitter development and manufacturing • Built-in 20 dB variable optical attenuator • Single package for less splicing, lower overall insertion loss and more usable board space • 1535 to 1565 nm operation; L-band versions available • Low drive voltage; compatible with commercial drivers • Low chirp for maximum transmission distance (>1000 km) • Voltage-controlled lithium niobate attenuator provides proven high reliability Applications • Medium- and long-haul DWDM transmission requiring dynamic optical power leveling • Transmitters with limite component space NORTH AMERICA : 800 498-JDSU (5378) The 2.5 Gb/s bias-free modulator with integral attenuator combines a modulator and a 20 dB variable attenuator within one small-outline package, simplifying component count and fiber splicing. The bias point of the interferometer is set to operate at about the half-intensity point (quadrature). A bias control circuit is not required. The attenuator is based on proven integrated optical waveguide technology, making it highly reliable. The modulator provides superior signal quality over a wide range of wavelengths in the C and L bands, and can be used to modulate tunable lasers. These devices are used for 2.5 Gb/s modulation and dynamic power leveling in dense wavelength division multiplexing (DWDM) systems. WORLDWIDE : +800 5378-JDSU WEBSITE : www.jdsu.com 2.5 GB/S BIAS-FREE MODULATOR WITH INTEGRAL ATTENUATOR 2 Typical Performance Characteristics Typical Frequency Response Curve, S21 Typical Return Loss Curve, S11 0.00 0 -5.00 -4 -7.50 S11 (dB) S21 (dB) -2.50 -2 -6 -10.00 -12.50 -8 -15.00 -10 -17.50 -12 -20.00 0.0 0.5 1.0 1.5 2.0 2.5 0.0 3.0 0.5 1.0 1.5 Dimensions Diagram 7.9 [200] MINIMUM BARE FIBER 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) (Specifications in inches [mm] unless otherwise noted.) .157 [3.99] (2) PLCS 39.4±2.0 [1000±50] 3.047 [77.39] .287 [7.30] (2) PLCS DATE IN .77 [19.7] (2) PLCS .200[5.08] (6) PLCS 5.2±.2 [131.4±5.1] PIN DIA .020 (2) PLCS PIN DIA .020 (2) PLCS TOP VIEW PIN DIA .012 .30 [7.6] .149 [3.78] PIN DIA .012 39.4±2.0 [1000±50] "X" DENOTES REV LETTER .143 [3.63] BOTTOM OF PINS (6) PLCS (2) PLCS .15 [3.7] .09 [2.2] MODEL NUMBER OUT S/N XXXX 0 VDC MAX +24 dbm MAX MZ2 INPUT ATTENUATOR DC BIAS INPUT MZ1 INPUT 7.9 [200] MINIMUM BARE FIBER .433 [11.00] .30 [7.6] .19 [4.9] 10020289"X" .500 [12.70] (2) PLCS .060 [1.52] LEFT SIDE VIEW .15 [3.7] .655 [16.64] RIGHT SIDE VIEW .855 [21.72] 1.947 [49.44] 2.047 [51.98] 2.147 [54.52] 2.300 [58.42] 3.622 [92.01] FRONT VIEW 2.5 GB/S BIAS-FREE MODULATOR WITH INTEGRAL ATTENUATOR 3 Specifications Parameter General Material Crystal orientation Waveguide process Optical Operating wavelength Insertion loss, no connectors (note2) On/off extinction ratio, low frequency Optical return loss Electrical RF port Drive voltage, V peak-to-peak, at 2.5 Gb/s PRBS (note3) Vπ at 100 kHz (note3) S21 electro-optic bandwidth (-3 dBe) (note1, 3) S11 return loss 0.03 to 2.5 GHz (note3) RF input power Chirp, alpha parameter Attenuator port Vπ at DC Impedance Mechanical Input Output (note4) RF connection Bias connection Environmental Operating temperature Storage temperature Specification Lithium niobate x-cut, y-propagating APE/titanium-indiffused 1535 to 1565 nm ≤6.5 dB ≥20 dB ≥50 dB 3.6 V typical ≤3.7 V ≥2.5 GHz ≤-9.5 dB ≤24 dBm |α|<0.2 ≤5.0 V ≥1 MΩ Fujikura SM-15-P-8/125-UV/UV-400 SMF-28 Pins Pins 0 to 65 °C -40 to 85 °C 1. Relative to 30 MHz. 2. Insertion loss is measured at the maximum of the modulator’s transfer function and does not include the 3 dB loss incurred when operating at quadrature. 3. Variances with temperature and wavelength included. 4. PM output fiber also available. 2.5 GB/S BIAS-FREE MODULATOR WITH INTEGRAL ATTENUATOR 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: 10021970 Product Code 10021970 10021971 Description 2.5 Gb/s modulator with integral attenuator and no optical connectors 2.5 Gb/s modulator with integral attenuator and FC/SPC optical connectors Note: Other connectors available upon special request. Call JDSU for more information. SMF-28 and Fujikura SM-15-P-8/125-UV-400 are registered trademarks of Corning 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, including 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. 10116236 Rev. 001 05/06 25GBFMVOA.DS.CC.AE NORTH AMERICA : 800 498-JDSU (5378) WORLDWIDE : +800 5378-JDSU WEBSITE : www.jdsu.com