FM-eliminated C2H2 frequency-stabilized laser diode with an RIN of -135 dB/Hz and a linewidth of 4 kHz

Keisuke Kasai; Masataka Nakazawa

doi:10.1364/OL.34.002225

FM-eliminated C₂H₂ frequency-stabilized laser diode with an RIN of -135 dB/Hz and a linewidth of 4 kHz

Keisuke Kasai, Masataka Nakazawa

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We demonstrate the frequency stabilization of a 1.5 μm laser diode (LD) with a low-intensity noise and a narrow linewidth to a ¹³C ₂H₂ linear absorption line. The LD consists of an InP gain chip and an external Bragg reflector made of a PLC waveguide. By employing an external frequency modulator in a frequency stabilization circuit, an FM-eliminated optical output beam was obtained. The frequency stabilities reached as high as 2.3 × 10^-11 for τ= 1 s and 9.1 × 10^-12 for τ= 100 s. Furthermore, an RIN of less than -135 dB/Hz and a linewidth of 4 kHz were simultaneously achieved.

Original language	English
Pages (from-to)	2225-2227
Number of pages	3
Journal	Optics Letters
Volume	34
Issue number	14
DOIs	https://doi.org/10.1364/OL.34.002225
Publication status	Published - 2009 Jul 15

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "We demonstrate the frequency stabilization of a 1.5 μm laser diode (LD) with a low-intensity noise and a narrow linewidth to a 13C 2H2 linear absorption line. The LD consists of an InP gain chip and an external Bragg reflector made of a PLC waveguide. By employing an external frequency modulator in a frequency stabilization circuit, an FM-eliminated optical output beam was obtained. The frequency stabilities reached as high as 2.3 × 10-11 for τ= 1 s and 9.1 × 10-12 for τ= 100 s. Furthermore, an RIN of less than -135 dB/Hz and a linewidth of 4 kHz were simultaneously achieved.",

author = "Keisuke Kasai and Masataka Nakazawa",

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AB - We demonstrate the frequency stabilization of a 1.5 μm laser diode (LD) with a low-intensity noise and a narrow linewidth to a 13C 2H2 linear absorption line. The LD consists of an InP gain chip and an external Bragg reflector made of a PLC waveguide. By employing an external frequency modulator in a frequency stabilization circuit, an FM-eliminated optical output beam was obtained. The frequency stabilities reached as high as 2.3 × 10-11 for τ= 1 s and 9.1 × 10-12 for τ= 100 s. Furthermore, an RIN of less than -135 dB/Hz and a linewidth of 4 kHz were simultaneously achieved.

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FM-eliminated C₂H₂ frequency-stabilized laser diode with an RIN of -135 dB/Hz and a linewidth of 4 kHz

Abstract

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