Optical switch by direct modulated laser diode using fiber laser for pulse picking. Issue 2 (24th January 2023)

• Record Type: Journal Article
• Authors: Kaneko, Satoru; Yasui, Manabu; Kurouchi, Masahito; York, Robert; Hagiwara, Yuna; Nakamura, Masaru
• Is Part Of: Journal of engineering. Volume 2023:Issue 2(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-01-24
• Subjects: laser processing -- signal processing -- optical components; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/tje2.12228
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract: A new method of direct modulating a pre‐amplifier laser diode as an optical switch is proposed. To modulate the laser diode with lower repetition rate, the repetition rate in the kilohertz region can be achieved using a source laser of 100 MHz without electro‐optical modulators (EOM) or acousto‐optical modulators (AOM). Using a direct modulated laser diode, an ON/OFF ratio (extinction ratio) of 25 dB was demonstrated in this study. Abstract : We propose a new method of direct modulating pre‐amplifier laser diode as an optical switch. To modulate the laser diode with lower repetition rate, the repetition rate in the kilohertz region can be achieved using a source laser of 100 MHz without electro‐optical modulators (EOM) or acousto‐optical modulators (AOM). Using direct modulated laser diode, ON/OFF ratio (extinction ratio) of 25 dB was demonstrated in this study.