External cavity, multiple wavelength laser transmitter

Details External cavity, multiple wavelength laser transmitter External cavity, multiple wavelength laser transmitter

1993-05-06

1995-01-03

Davie, James W.

Coherent light generators

Particular beam control device

Producing plural wavelength output

372 20, 372 92, 372102, H01S 310

Patent

active

053793102

ABSTRACT:
A multiple channel transmitter usable for wavelength division multiplying includes a grating and a curved reflector. A diode array generates a plurality of parallel, spaced apart radiant energy beams which are incident on the grating at an acute angle. The plurality of beams is deflected in part, into the reflector. Back reflected radiant energy is deflected, in part, to the members of tile array causing them to lase at a plurality of different frequencies. The zeroth order deflection of the forward propagating beams off of the grating forms a parallel output.

REFERENCES:
patent: 4696012 (1987-09-01), Harshaw
patent: 5115444 (1992-05-01), Kirkby et al.
patent: 5228103 (1993-07-01), Chen et al.
patent: 5255273 (1993-10-01), Nilsson et al.
patent: 5274657 (1993-12-01), Hori et al.
Soole et al., Multistripe Array Grating Integrated Cavity (Magic) Laser: A New Semiconductor Laser for WDM Applications, Appl. Phys. Lett. 61(23), 2750-2752, 7 Dec. 1992.
Nyairo, et al. Multiple Grating Cavity (MGC) Laser Transmitter for Wavelength Division Multiplexing Application, IEEE Proceedings J, vol. 138, No. 5: 337-342 Oct. 1991.
Carvalho et al, Tuneable Multiwavelength Semiconductor Laser with Single Fibre Output, Electronics Letters, vol. 27, No. 17: 1498-1499 (1991), (no month).

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