The performance of a traveling-wave-type semiconductor laser amplifier as a booster in multiwavelength simultaneous amplification

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Journal of Lightwave Technology; (USA)

DOI:https://doi.org/10.1109/50.45936· OSTI ID:6970864

Koga, M; Matsumoto, T ^[1]

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1. NTT Transmission Systems Labs., 1-2356 Take, Yokosuka-shi, Kanagawa (JP)

The performance of a traveling-wave-type semiconductor laser amplifier (TWA) as a booster in multiwavelength simultaneous amplification is analytically and experimentally studied. The theoretical worst and the average interchannel crosstalk are shown as a function of normalized input power. The validity of normalization by saturation input power is confirmed with experimental data. This normalized input power must be set below {minus} 20 and {minus} 10 dB for multiwavelength number of 20 and 4, respectively, to attain an average interchannel crosstalk of under {minus} 10 dB. The optical loss that can compensated using a TWA as booster amplifier is analytically introduced including crosstalk for evaluating the input dynamic range. A multiwavelength transmission system could be designed for optical loss that could be compensated by employing the average interchannel crosstalk. Theoretical evaluations are confirmed with a transmission experiment involving four-channel intensity-modulated signal simultaneous amplification at 400 Mbit/s.

• OSTI ID: 6970864
• Journal Information: Journal of Lightwave Technology; (USA), Journal Name: Journal of Lightwave Technology; (USA) Vol. 8:1; ISSN 0733-8724; ISSN JLTED
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFIERS
ANALYTICAL SOLUTION
DATA
ELECTRONIC EQUIPMENT
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
LASERS
NUMERICAL DATA
PERFORMANCE
PULSE AMPLIFIERS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS