PHOTONIC SWITCHING MODULES DESIGNED WITH LASER DIODE AMPLIFIERS

被引：21
作者：
EVANKOW, JD [1 ]
THOMPSON, RA [1 ]
机构：
[1] AT&T BELL LABS,COMP SYST RES LAB,MURRAY HILL,NJ 07974
来源：
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 1988年 / 6卷 / 07期
关键词：
LASERS; SEMICONDUCTOR - OPTICAL COMMUNICATION EQUIPMENT - SWITCHING THEORY;
D O I：
10.1109/49.7829
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Photonic switching elements are designed from semiconductor optical amplifiers and passive couplers with fiber-to-fiber unity gain and low crosstalks. Designs for a 2 × 2 and an asymmetric 2 × 3 element, and several designs for 4 × 4 elements, are presented. While most amplifier analyses have stressed the importance of ultralow facet reflectivities for high-gain operation, with protection against external reflections with optical isolators, modest facet reflectivities are satisfactory for these elements. It is also shown that substantial amounts of external reflection can be tolerated. The various architectures are compared according to amplifier count, blocking characteristic, broadcast potential, noise power (amplified spontaneous emission), and fault tolerance.
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页码：1087 / 1095
页数：9
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