Cylindrical diffraction grating couplers and distributed feedbac

Details Cylindrical diffraction grating couplers and distributed feedbac Cylindrical diffraction grating couplers and distributed feedbac

1985-12-30

1988-05-10

Sikes, William L.

350 9610, 350 9612, 35016212, 35016216, G02B 634, G02B 600, G02B 2742, G02B 2744

Patent

active

047430834

ABSTRACT:
Devices for controlling and guiding waves, such as electromagnetic waves, acoustic waves, and the like are disclosed which include at least one wave-transmitting medium and a diffraction grating, associated with the transmitting medium, for scattering wave energy into or out of the guided waves. The device may take the form of a "sandwich"-type or thin film waveguide, in which case the transmitting medium has at least one curvi-planar boundary, or it may take the form of a "rod"-shaped or cylindrical waveguide, in which case the transmitting medium has a substantially cylindrical boundary. According to the invention, the diffraction grating comprises a large number of substantially closed loop grating lines consecutively enclosing each other from inner to outer, with all of the grating lines extending substantially parallel to the phase fronts of the guided waves.

REFERENCES:
patent: 3970959 (1976-03-01), Wang et al.
patent: 3995937 (1976-12-01), Baues et al.
patent: 4006432 (1977-07-01), Streifer et al.
patent: 4027946 (1977-06-01), Tsai
patent: 4138190 (1979-02-01), Bryngdahi
patent: 4140362 (1979-05-01), Tien
patent: 4155056 (1979-05-01), Cross et al.
patent: 4194162 (1980-03-01), Uematsu et al.
patent: 4210391 (1980-07-01), Cohen
patent: 4327340 (1982-04-01), Coldren
patent: 4440468 (1984-03-01), Auracher et al.
patent: 4498184 (1985-02-01), O'Meara
patent: 4640574 (1987-02-01), Unger
"Circular and Spiral Gratings" by Dyson, Proc. Royal Soc. London Ser. A248, dated 1958, pp. 93-106.
"Double-Heterostructure GaAs Distributed-Feedback Laser" by Schmidt et al., Appl. Physics letters 25, pp. 200-201, dated 1974.
"Antisymmetric Taper of Distributed Feedback Lasers" IEEE J. Quantum Elect. vol. QE12, No. 9, dated 1976, pp. 532-539.
"Planar Distributed-Feedback Optical Resonators", Soc. Phys. Tech. Phys., vol. 21, No. 2, dated 1976, pp. 130-136, by Kazarinov et al.
"Design Considerations of the Metal-Clad Ridge-Waveguide Laser with Distributed Feedback", by Schimpe, IEE Proc. vol. 132, Pt. J. No. 2, 1985, pp. 133-135.
"Semiconductor Laser with Extremely Low Divergence of Radiation" by Alferov et al, Soviet Physics Semiconductors, vol. 8, No. 4, dated 1974, pp. 541-542.
"1.5 Micron Phase-Shifted DSB Lasers for Single Mode Operation" by Sekartedjo et al, Electronics Letters, vol. 20, No. 2, dated 1984, pp. 80-81.
"Mikrowellen Antennen" by Kuhn, pp. 628-629.
"Use of a Concentric-Arc Grating as a Thin-Film Spectograph for Guided Waves" by Tien, Appl. Phys. Lett., vol. 37, No. 6, dated 1980, pp. 524-526.
"Second Order Distributed Feedback Lasers with Mode Provided by First-Order Radiation Losses" by Kazarinov, IEEE J. Quantum Elect., vol. QE-21, No. 2, dated 1985, pp. 144-150.
"Surface Emitting GaInAsP/InP Laser with Low Threshold Current and High Efficiency" by Liau et al, Appl. Phys Lett., vol. 46, No. 2, dated 1985, pp. 115-117.
"Room Temperature Pulsed Oscillation of GaA1As/GaAs Surface Emitting Junction Laser" by Iga et al, IEEE J. Quantum Elect, vol. QE-21, No. 6, dated 1985, pp. 663-667.
"Phased Matched Second Harmonic Generation by a Surface Polarition Along a Silver Layer on a Slab-Type Optical Waveguide" by Sasaki et al. Appl. Phys. Lett. vol. 47, No. 8, dated 1985, pp. 783-785.
"Enhanched Quantum Efficiency Internal Photoemission Detectors by Grating Coupling to Surface Plasma Waves" by Bruek et al, Appl. Phys. Lett., vol. 46, No. 10, dated 1985, pp. 916-917.
"The Influence of the Hologram Surface Curvature on the Holographic Imaging Quality" by Jagoszewski, Jun. 1984. Optik 69, No. 2 (1985), pp. 85-88.

Affiliated with

Also associated with

Rating

Cylindrical diffraction grating couplers and distributed feedbac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cylindrical diffraction grating couplers and distributed feedbac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylindrical diffraction grating couplers and distributed feedbac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1316211