Attenuators MEMS Attenuator/On-Off Switch DiCon's Attenuator/On-Off Switch is based on a micro-electromechanical system (MEMS) chip. The MEMS chip consists of an electrically movable mirror on a silicon support. A voltage applied to the MEMS chip causes the mirror to rotate, which changes the coupling of light between the input and output fibers of the Attenuator/On-Off Switch. Cylindrical Package Features * * * * * Combining Variable Optical Attenuator and On-Off Switch Small attenuator package Qualified to GR-1221 Available in opaque or transparent versions Available in both cylindrical and 14-pin DIP package Applications Attenuator/On-Off Switches are used as safety shutters during laser transmitter power up as well as for channel equalization once the laser has stabilized. In its highest loss position, the Attenuator/On-Off Switch provides greater than 45 dB of power isolation. Used as an Attenuator, it allows the output power of the laser to be continuously adjusted over a 40 dB range. Attenuator/On-Off Switches are ideally suited for use within line cards or transponders. U.S. patent pending. Specifications subject to change. Copyright (c)2004 DiCon Fiberoptics, Inc. All rights reserved. Specifications1,2 Ordering Information 0.8 dB max. Off state isolation 45 dB min. Broad band Application Flatness Narrow band Application 3 MSA - 0 to 15 dB 0.4 dB max. 15 to 20 dB 0.7 dB max. 0 to 20 dB 0.2 dB max. - - C D Attenuator Type Transparent 1 Opaque 2 T O Operating Wavelength Range 0.2 dB max. Attenuation slope 20 dB/V max. 13 15 16 Polarization mode dispersion 0.05 ps max. Attenuator Range Back-reflection -50 dB max. 20 X 500 mW max. Response time Repeatability 0.1 dB max. Wear-out 1 x 10 cycles min. Fiber type 9/125 single mode fiber Operating temperature -50C to +700C Storage temperature -400C to +850C 1280 - 1330 nm 1528 - 1563 nm 1570 - 1610 nm 20 dB min. Specify X dB min. (X <= 40) Ripple Type S F Slow ripple (broad band) Fast ripple (narrow band) Jacket Type 9 250 barefiber 900 loosetube 2B 9L Connector Type FC FC/APC X N 1. All specifications referenced without connectors. 2. At room temperature. 3. Maximum change of each 2 nm segment within the operating range. FC/SPC FC/APC specify connector type 3 None 1 meter Specify X meters DC drive voltage 0 - 6.5 VDC Housing Dimensions Voltage damage threshold 10 VDC max. Cylindrical Package Resistance 2 M min. Power consumption 20 uWatt max. 3.00 27.5 13.5 1.0 O2.5 O5.56 MEMS-VOA Optical Performance Transparent 10 10 2 (CNTL) 3 (GND) O5.56 14-pin DIP Package Opaque 0 o5.50 20.83 Attenuation (dB) Attenuation (dB) 9.50 20 30 40 12.70 7.50 4.07 20 4.84 30 0 1 2 3 4 5 Control Voltage (V) 6 7 7.62 Units: mm o.45 2.54 40 14 13 12 11 10 9 8 50 - 1. Minimum insertion loss at 0 V. 2. Minimum insertion loss at 6.5 V (high isolation at 0 V). 3. Connector Types: FC/UPC, SC, SC/APC, SC/UPC, LC, LC/UPC, MU/UPC Non-latching 0 - Pigtail Length 1 X Electrical Specifications Actuation type - 9 - Cylindrical 14-Pin DIP 0.15 dB max. 2 ms max. - Housing Type 0 to 15 dB Polarization dependent loss 15 to 20 dB Optical power - Attenuators Excess loss MEMS Attenuator/On-Off Switch Attenuators 50 Top View 0 1 2 3 4 5 Control Voltage (V) 6 7 1 DiCon Fiberoptics, Inc. 1689 Regatta Blvd. Richmond, CA 94804 Tel. (510)620-5000 2 3 4 5 6 7 Fax. (510)620-4100 Pin Assignment 1 GND 8 NC 2 CNTL 9 NC 3 NC 10 NC 4 NC 11 CASE GND 5 NC 12 NC 6 NC 13 NC 7 NC 14 NC www.diconfiber.com 0055E