Product Bulletin ACPM Series Polarization Maintaining Fiber Splitter/Couplers IN The ACPM Series couplers divide light while maintaining a high polarization extinction ratio. They have one input port and two output ports of polarization maintaining fiber and are available with 50/50, 30/70, 10/90, 05/95, 2/98, and 1/99 splitting ratios. These couplers are based on a beam splitting filter design. As shown in the schematic, the polarized light from the input fiber is partially reflected and transmitted by the filter and refocused into the two output fibers. The use of the beam splitter filter allows for consistent output ratios over a broad operational wavelength range. These devices guarantee extinction ratios greater than 20 dB. P E R Configuration Dimensions M I L A Y R Key Features Standard output ratios of 50/50, 30/70, 10/90, 5/95, 2/98, and 1/99 Operational wavelengths of 1310/1480/1550 nm Typical excess loss of 0.5 dB Typical return loss of 60 dB Applications Interferometers Splitting light in PM fiber Fiber gyroscopes Coherent transmission systems Sensor systems Instruments ACPM Series | 2 Specifications Parameter Specification Wavelengths Excess loss1 Return loss1 Extinction ratio2 (at room temperature) Maximum optical power Splitting ratios (Output 1/Output 2) Number of ports3 Fiber type 1310, 1480, or 1550 nm 20 nm 0.8 dB maximum, 0.5 dB typical 50 dB minimum, 60 dB typical 20 dB minimum 100 mW 50/50 5%, 30/70 5%, 10/90 2%, 5/95 1%, 2/98 0.2%, and 1/99 0.2% 3 Fujikura Panda 8/125/400 m (900 m) for 1550 nm Fujikura Panda 7/125/400 m (900 m) for 1310 and 1480 nm 1.0 minimum 5.6 x 5.6 x 38.1 mm with tabs (with 400 m tight buffer fiber) 8.9 x 8.9 x 45.7 mm (with 900 m loose tube buffer) 0 to 50 C -20 to 70 C Fiber length Dimensions (WxHxL) Operating temperature Storage temperature A Y R 1. Excluding connectors. 2. Extinction ratio is defined as the ratio of the optical power launched into the two orthogonal axes of a PM fiber. The direction of linear polarization is aligned with the slow axis of the fiber (axis through the stress rods).Due to the intrinsic properties of polarization maintaining fiber, a broadband source such as a LED is used to characterize the extinction ratios. 3. Custom version with 4 ports or other wavelengths (980 nm) is available. Note: These specifications are applicable over operating temperature unless otherwise specified. M I L IN Ordering Information Indicate your requirements by selecting one option from each configuration table. Please print the corresponding codes in the available boxes to form your part number. For more information on this or other products and their availability, please contact your local JDS Uniphase sales representative or JDS Uniphase directly at 613 727-1303, or by fax at 613 727-8284, or via e-mail at sales@ca.jdsunph.com, or visit our Web site at www.jdsunph.com. Sample: ACPM+13716NC P E R ACPM+1 Code 11 37 19 59 29 09 Output Ports Ratio 50/50 30/70 10/90 5/95 2/98 1/99 Code 2 4 1 Wavelength 1310 nm 1480 nm 1550 nm Connector Type1 No connector FC/PC FC/APC 1. Key of the FC connector is aligned with the slow axis of the PM fiber. Complimentary polarization products are available from JDS FITEL: * Polarization beam splitter/combiners * In-line polarizers * Rotating polarizers * Depolarizers * Faraday rotator mirrors JDS Uniphase Corporation 570 West Hunt Club Road Nepean (Ottawa), Ontario K2G 5W8 Canada Code NC FP FA Tel 613 727-1303 Fax 613 727-8284 sales@ca.jdsunph.com www.jdsunph.com Code 1 6 Pigtail Type (all ports) PM 400 m tight buffer PM 400 m tight buffer with 900 m PVC loose tube 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 manufacturing methods. Some specific combinations of options may not be available. Please contact JDS Uniphase for more information. (c)JDS Uniphase Corporation. All rights reserved. MKT-DS-0016 Rev.E 10/99 Printed in Canada