Coherent light generators – Particular beam control device – Tuning
Patent
1993-11-15
1995-03-07
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Tuning
372 6, 372 92, 372 97, 372 64, 372108, 372 99, 372 23, 385 46, H01S 310
Patent
active
053965078
ABSTRACT:
A tunable laser formed on a semiconductive wafer comprising a plurality of monolithically integrated optical amplifiers and a planar optical multiplexer is disclosed. According to the invention, one of the optical amplifiers is activated by energy, which amplifier produces a signal. The signal is carried along a waveguide associated with the optical amplifier and enters a reflective Dragone router, which is the preferred optical multiplexer. The reflective Dragone router functions, in conjunction with the activated optical amplifier, to define a wavelength selective optically transmissive pathway to create lasing action. Facet mirrors are cleaved in the semiconductive wafer defining the lasing cavity which includes the optical amplifiers, associated waveguides and the reflective Dragone router.
REFERENCES:
patent: 5002350 (1991-03-01), Dragone
patent: 5136671 (1992-08-01), Dragone
Woodward et al., "Effects of Aging on the Bragg Section of DBR Laser," IEEE Photon. Tech. Lett., 5(7), (Jul. 1993) at 750-52.
Soole et al., "Multistripe Array Grating Integrated Cavity (MAGIC) Laser: A New Semiconductor Laser for WDM Applications," Elect. Lett., 28(19), (Sep. 1992) at 1805-7.
Soole et al., "Wavelength-selectable Laser Emission from a Multistripe Array Grating Integrated Cavity Laser," Appl. Phys. Lett., 61(22), (Dec. 1992) at 2750-52.
Poguntke et al., "Simultaneous Multiple Wavelength Operation of a Multistripe Array Grating Integrated Cavity Laser," Appl. Phys. Lett., 62(17), (Apr. 1993) at 2024-26.
C. Dragone, "An NxN Optical Multiplexer Using a Planar Arrangement of Two Star Couplers," IEEE Photon. Tech. Lett., 3(9), (Sep. 1991) at 812-15.
Glance et al., "Applications of the Integrated Wavelength Router," submitted Sep. 1993 for publication in the Journal of Lightwave Technology.
Zirngibl et al., "Demonstration of a 15.times.15 Arrayed Waveguide Multiplexer on InP," IEE Photon. Tech. Lett., 4(11), (Nov. 1992) at 1250-53.
Zirngibl et al., "Polarisation Independent 8.times.8 Waveguide Grating Multiplexer on InP," Elect. Lett., 29(2), (Jan. 1993) at 201-02.
Kaminow Ivan P.
Zirngibl Martin
AT&T Corp.
Jr. Leon Scott
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