Fiber-optic wavelength-division multiplexing and demultiplexing using volume holographic gratings
- Physical Optics Corporation, 2545 West 237th Street, Suite B, Torrance, California 90505 (US)
We present theoretical and experimental results of a novel fiber-optic wavelength-division multiplexing (WDM) design employing a broadband (>150-nm) dichromated gelatin volume holographic grating operating in a reflective Littrow configuration with on-axis optics, a single lens, and one fiber array. This configuration can achieve better than {minus}1.5-dB insertion loss and {minus}40-dB cross talk for a 6-channel system and {minus}2.5-dB insertion loss and {minus}20-dB cross talk for a 12-channel system with 15-nm channel spacing. For an experimental 4-channel WDM unit we measured better than {minus}1.5-dB insertion loss for all channels and less than {minus}32-dB cross talk. This design can provide cost and performance benefits for local area network communication applications.
- OSTI ID:
- 5520872
- Journal Information:
- Optics Letters; (USA), Journal Name: Optics Letters; (USA) Vol. 14:19; ISSN 0146-9592; ISSN OPLED
- Country of Publication:
- United States
- Language:
- English
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