Presentation 2011-08-25
Oscillation characteristics of an ^<13>C_2H_2 frequency-stabilized λ/4-shifted DFB LD with an external fiber ring cavity
Keisuke KASAI, Masataka NAKAZAWA,
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Abstract(in English) We demonstrate frequency stabilization of a λ/4-shifted distributed feedback laser diode (DFB LD) with an external fiber ring cavity to an ^<13>C_2H_2 (acetylene) linear absorption line. By employing a feedback control of the λ/4-shifted DFB passband to track one Fabry-Perot mode associated with the fiber ring cavity, we have successfully tuned an oscillation frequency over 1.2 GHz without mode-hopping. The optical frequency was stabilized to a ^<13>C_2H_2 absorption line with an external frequency modulation scheme, which realizes an FM-eliminated output beam. The frequency stabilities reached as high as 1.4×10^<-10> for τ=1 s and 1.3×10^<-11> for τ=100 s. Furthermore, a linewidth of 2.6 kHz and a relative intensity noise of less than -135 dB/Hz were simultaneously achieved.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) λ/4-shifted DFB LD / External cavity / Acetylene absorption line / Frequency stabilization
Paper # EMD2011-41,CPM2011-85,OPE2011-76,LQE2011-39
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Conference Information
Committee CPM
Conference Date 2011/8/18(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Oscillation characteristics of an ^<13>C_2H_2 frequency-stabilized λ/4-shifted DFB LD with an external fiber ring cavity
Sub Title (in English)
Keyword(1) λ/4-shifted DFB LD
Keyword(2) External cavity
Keyword(3) Acetylene absorption line
Keyword(4) Frequency stabilization
1st Author's Name Keisuke KASAI
1st Author's Affiliation Research Institute of Electrical Communication, Tohoku University()
2nd Author's Name Masataka NAKAZAWA
2nd Author's Affiliation Research Institute of Electrical Communication, Tohoku University
Date 2011-08-25
Paper # EMD2011-41,CPM2011-85,OPE2011-76,LQE2011-39
Volume (vol) vol.111
Number (no) 184
Page pp.pp.-
#Pages 4
Date of Issue