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Using fibre gratings to stabilise laser diode wavelength under modulation for atmospheric lidar transmitters

Using fibre gratings to stabilise laser diode wavelength under modulation for atmospheric lidar transmitters

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  • Author(s): S.M. Lord 1 ; G.W. Switzer 2 ; M.A. Krainak 3
    • View affiliations
    • Affiliations: 1: Department of Electrical Engineering, Bucknell University, Lewisburg, USA
      2: Department of Physics, Montana State University, Bozeman, USA
      3: Optics Branch, NASA Goddard Space Flight Center, Code 717 Greenbelt, USA
  • Source: Volume 32, Issue 6, 14 March 1996, p. 561 – 563
    DOI:  10.1049/el:19960353 , Print ISSN 0013-5194, Online ISSN 1350-911X
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The authors report on the optical spectrum of a high power (150 mW) laser diode under large signal intensity modulation with feedback from an external cavity fibre grating. Single longitudinal facet mode operation was maintained for 6 kHz 1% and 3% duty cycle pulsed and 1 Mbit/s psuedonoise code modulation with extinction ratios as small as 0.01.

Inspec keywords: laser feedback; optical radar; semiconductor lasers; laser frequency stability; laser cavity resonators; optical transmitters; diffraction gratings; optical modulation; optical fibres

Other keywords: high power laser diode; 1 Mbit/s; single longitudinal facet mode operation; modulation; large signal intensity modulation; laser diode wavelength stabilisation; extinction ratios; duty cycle pulse; 150 mW; pseudonoise code modulation; fibre gratings; external cavity fibre grating; atmospheric lidar transmitters; optical spectrum

Subjects: Semiconductor lasers; Gratings, echelles; Laser beam modulation, pulsing and switching; mode locking and tuning; Modulation and coding methods; Laser resonators and cavities; Laser beam applications; Optical radar; Fibre optics; Other fibre optical devices and techniques; Laser resonators and cavities; Lasing action in semiconductors

References

    1. 1)
      • J.A.R. Rall , J.B. Abshire . (1995) Antarctic miniature lidar, Semiconductor lasers: Advanced devices and applications.
    2. 2)
      • K.C. Harvey , C.J. Myatt . External-cavity diode laser using a grazing incidence diffraction grating. Opt. Lett. , 910 - 912
    3. 3)
      • B.F. Ventrudo , G.A. Rogers , G.S. Lick , D. Hargreaves , T.N. Demoyo . Wavelength and intensity stabilisation of 980 nm diode lasers coupledto fibre Bragg gratings. Electron. Lett. , 2147 - 2149
    4. 4)
      • P.A. Morton , V. Mizrahi , T. Tanbun-Ek , R.A. Logan , P.J. Lemaire , H.M. Presby , T. Erdogan , S.L. Woodward , J.E. Sipe , M.R. Phillips , A.M. Sergent , K.W. Wecht . Stable single mode hybrid laser with high power and narrow linewidth. Appl. Phys. Lett. , 2634 - 2636
    5. 5)
      • G.A. Ball , W.W. Morey . Compression-tuned single-frequency Bragg grating fiber laser. Opt. Lett. , 1979 - 1981
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