Product Bulletin 2.5 Gb/s Bias Free Modulator Butterfly Package The 2.5 Gb/s bias free modulator is a digital device in which the bias point of the interferometer is set to operate at about the half-intensity point (quadrature). A bias control circuit is not required. This feature simplifies circuit design and speeds product development.This device provides superior signal quality over a wide range of wavelengths in the C and L-bands and can be used to modulate tunable lasers. The modulator is designed for medium and long haul transmission in DWDM and TDM systems. Key Features * Bias free operation for fast transmitter development and manufacturing * Small outline package * 1535 nm to 1565 nm operation,"L" band versions available * Low drive voltage, compatible with commercial drivers * Low chirp for maximum transmission distance (> 1000 km) Applications * Medium and long haul transmission * DWDM and TDM transmission Compliance * Telcordia 468 2.5 Gb/s Bias Free Modulator | 2 0.00 0 -2.50 -2 -5.00 -7.50 dB S21 (dB) -4 -10.00 -6 -12.50 -8 -15.00 -10 -17.50 -12 -20.00 0 0.5 1 1.5 2 2.5 Frequency (GHz) Typical Frequency Response Curve, S21 Measured ER = 18.7 dB Driver: NEL C19401 3 0.0 0.5 1.0 1.5 2.0 Frequency, GHz Typical Return Loss Curve, S11 Measured ER = 19 dB Driver: Veritech VM 2.5EMD-422 2.5 3.0 2.5 Gb/s Bias Free Modulator | 3 2.5 Gb/s Bias Free Modulator Performance Specifications General Material Crystal orientation Electrical connectors (package) Fiber types Cabling length, no connectors Fiber length, no connectors Fiber length, with connectors Cabling type Input fiber launch axis LiNbO3 x-cut, y-propagating solderable pins PM input: Fujikura SM 15-P-8/125-UV/UV-400 SM output: Corning SMF 28 1000 50 mm 200 mm minimum longer than the cabling 1000 50 mm, to tip of connector ferrule 900 m diameter loose tube slow (parallel to the stress rods) Absolute Input optical power, maximum Operating temperature Storage temperature 200 mW 0C minimum, 65C maximum -40C minimum, 85C maximum Optical Operating Wavelength (nm) Insertion loss, typ (dB) Insertion loss, no connectors, max (dB) Insertion loss, with connectors, max (dB) On/off extinction ratio (<100 kHz), min (dB) On/off extinction ratio at 2.5 Gb/s, typ (dB)2,3 On/off extinction ratio at 2.5 Gb/s, min (dB)2,3 Optical return loss (dB) 1535 to 1565 3.5 4.5 4.8 >20 >15.0 >14.0 >50 Electrical, all RF/data electrode Maximum power, continuous (dBm) Low Freq. VX (<100 kHz), max (V) Drive voltage, Vpeak-to-peak, typ (V)1,2,3,4 DC impedance, min () DC impedance, max () Rise time, max (ps)2 Fall time, max (ps)2 S21 Bandwidth, -3 dB (GHz) S11, 30 kHz to 2.5 GHz, (dB) 24 3.7 3.6 28 32 120 120 >2.5 < -9.5 Notes: 1. Bias free devices are intended to work with 0v DC on the RF/Data electrodes. 2. Value dependent on driver ckt design and/or measurement conditions. Consult JDS Uniphase Application Eng. for more information. 3. Max extinction ratio using 2 23-1 Pseudo-Random Bit Sequence (PRBS). 4. Voltage measured using high-impedance probe at RF/Data input. 2.5 Gb/s Bias Free Modulator | 4 Package Dimensions Ordering information Indicate your requirements by selecting one option from each configuration table. For more information on this or other products and their availability, please contact your local JDS Uniphase sales representative or JDS Uniphase directly at 860 769-3000, or by fax 860 769-3001, or via email at sales.ct@us.jdsunph.com, or visit our Web site at www.jdsunph.com. Sample: 25150-002280 25150-00XXXX XXXX 2280 2281 model 2.5 Gb/s Modulator with no optical connectors 2.5 Gb/s Modulator with FC/SPC optical connectors Note: Other connectors available upon special request. Call us for more information. JDS Uniphase Corporation 1289 Blue Hills Avenue Bloomfield, Connecticut 06002 USA European Sales GCA House/Building #16 Thorney Leys Business Park Witney, Oxon OX8 7GE United Kingdom Tel 860 769-3000 Fax 860 769-3001 sales.ct@us.jdsunph.com www.jdsunph.com Tel +44 1993 601 601 Fax +44 1993 700 444 All information contained herein is believed to be accurate and is subject to change without notice. No responsibility is assumed for its use. JDS Uniphase Corporation, its subsidiaries and affiliates, or manufacturer, reserve the right to make changes, without notice, to product design, product components, and product manufacuring methods. Some specific combinations of options may not be available. Please contact JDS Uniphase for more information. (c)JDS Uniphase Corporation. All rights reserved. 2.5GBMODBF_butterfly Rev. A 11/99 Printed in USA