High-speed electro-absorption semiconductor light modulator for soliton pulse generators

Yuichi Matsushima, Masatoshi Suzuki, Hideaki Tanaka, Yukitoshi Takahashi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A simple and stable technique of optical short pulse generation for soliton transmission based on an electro-absorption (E-A) modulator is presented. By using the nonlinearity of the absorption characteristics of the modulator, ultrashort optical pulse trains having a shape close to a sech2 shape can be generated just with sinusoidal modulation. Quasi-transform-limited optical pulses with a time-bandwidth product of 0.32 were successfully generated by the sinusoidally driven InGaAsP E-A modulator up to a 20 GHz repetition rate. The high quality of the modulator-generated pulses has been proven by long-distance soliton transmissions. As for the applications of this scheme, a λ/4-shifted DFB laser/E-A modulator integrated light source and a tandem-integrated E-A modulator (TEAM) to form a single-chip soliton transmitter are also described.

Original languageEnglish
Pages (from-to)75-88
Number of pages14
JournalOptoelectronics Tokyo
Volume10
Issue number1
Publication statusPublished - 1995 Mar
Externally publishedYes

Fingerprint

Pulse generators
Light modulators
Solitons
Modulators
Semiconductor materials
Laser pulses
Distributed feedback lasers
Light sources
Transmitters
Modulation
Mathematical transformations
Bandwidth

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Matsushima, Y., Suzuki, M., Tanaka, H., & Takahashi, Y. (1995). High-speed electro-absorption semiconductor light modulator for soliton pulse generators. Optoelectronics Tokyo, 10(1), 75-88.

High-speed electro-absorption semiconductor light modulator for soliton pulse generators. / Matsushima, Yuichi; Suzuki, Masatoshi; Tanaka, Hideaki; Takahashi, Yukitoshi.

In: Optoelectronics Tokyo, Vol. 10, No. 1, 03.1995, p. 75-88.

Research output: Contribution to journalArticle

Matsushima, Y, Suzuki, M, Tanaka, H & Takahashi, Y 1995, 'High-speed electro-absorption semiconductor light modulator for soliton pulse generators', Optoelectronics Tokyo, vol. 10, no. 1, pp. 75-88.
Matsushima, Yuichi ; Suzuki, Masatoshi ; Tanaka, Hideaki ; Takahashi, Yukitoshi. / High-speed electro-absorption semiconductor light modulator for soliton pulse generators. In: Optoelectronics Tokyo. 1995 ; Vol. 10, No. 1. pp. 75-88.
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