Anti-guided phase-locked array and manufacturing method therefor

Details Anti-guided phase-locked array and manufacturing method therefor Anti-guided phase-locked array and manufacturing method therefor

1992-09-30

1994-06-21

Bovernick, Rodney B.

Coherent light generators

Particular beam control device

Mode locking

372 45, 372 46, 372 50, H01S 3082, H01S 325, H01S 3098

Patent

active

053234057

ABSTRACT:
A phase-locked laser array comprising a plurality of element regions for passing electric current into an active layer; and inter-element regions formed between the element regions. Each of the inter-element regions is so formed as to have two regions, i.e. a non-diffusion region at the center thereof and a diffusion regions disposed on both sides thereof, thereby rendering the refractive index in the non-diffusion region higher than that in the diffusion regions. The method of manufacturing the phase-locked laser array which is characterized by including a step growing an optical waveguide layer of superlattice on a portion of a second clad layer while diffusing impurities doped in the second clad layer into said optical waveguide layer, thereby forming a diffusion regions on both sides of the inter-element region.

REFERENCES:
patent: 4860298 (1989-08-01), Botez et al.
patent: 4866724 (1989-10-01), Botez et al.
Botez et al., IEEE Cir & Dev., vol. 2, Jan. 1986 "Phase-Locked Arrays of Semiconductor Diode Lasers" pp. 8-15.
"Phase-Locked Arrays of Antiguides: Modal Content and Discrimination"; by Botez et al; IEEE Journal of Quantum Electronics. vol. 26. No. 3, Mar. 1990; pp. 482-495.
"High-Power, In-Phase-Mode Operation From Resonant Phase-Locked Arrays of Antiguided Diode Lasers" by Mawst et al., Appl. Phys. Lett. 55(1), Jul. 3, 1989; pp., 10-12.

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