Optical: systems and elements – Optical amplifier – Optical fiber
Patent
1995-06-26
1996-10-15
Hellner, Mark
Optical: systems and elements
Optical amplifier
Optical fiber
359114, 359124, H01S 300, H04B 1024, H04J 1402
Patent
active
055660185
ABSTRACT:
An apparatus for adjusting the channel width of a multi-channel fiber amplifier light source, including an erbium-doped optical fiber amplifier constructed to generate a spontaneously emitted, amplified noise beam under a condition that no optical signal is applied thereto, the amplifier being used as a light source for wavelength division multiplexing, namely, a fiber amplifier light source. By the angle-turned Fabry-Perot etalon filter and the fiber-optic beam expander, the channel width can be easily controlled without affecting the free spectral range and the power of output light.
REFERENCES:
patent: 5361161 (1994-11-01), Baney et al.
patent: 5436760 (1995-07-01), Nakabayashi
"Spectrum-Sliced Fiber Amplifier Light Source for Multichannel WDM Applications", J. S. Lee, Y. C. Chung & D. J. DiGiovanni, 1993 IEEE Photonics Technology Letters, vol. 5, No. 12, Dec. 1993.
Lee Jae S.
Shim Chang S.
Electronics and Telecommunications Research Institute
Hellner Mark
Korea Telecommunication Authority
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