| Patent Number |
Title Of Patent |
Date Issued |
| 5363797 |
Method for producing organic crystal and crystal growth cell therefor |
November 15, 1994 |
| A method for producing an organic crystal is disclosed. One embodiment comprises maintaining a capillary tube containing a fused liquid of an organic crystal material and having a fused liquid reservoir at one end thereof at a temperature not less than the fusion point of the organic |
| 5355428 |
Optical wavelength conversion module |
October 11, 1994 |
| An optical wavelength conversion module having a laser light source, a lens system for managing the laser beam, and a conversion element. The laser light source generates a beam of laser light of a substantially circular cross-section having an aspect ratio of 1.3 or less. The substantia |
| 5345545 |
Optical fiber device |
September 6, 1994 |
| An optical fiber device comprising an optical fiber comprising a core made of an organic crystal and a cladding made of glass, the device generating second harmonics of a laser light that has been launched into the core, the device further comprising a buffer layer on at least one end fa |
| 5323261 |
Harmonic generating device |
June 21, 1994 |
| A fiber-type wavelength converting device comprises a nonlinear optical crystal core; and a glass cladding surrounding the core that produces a second harmonic utilizing Cherenkov radiation. An exit end face of the cladding is flat, and an exit end face of the core has asperities. The |
| 5293444 |
Wavelength converter |
March 8, 1994 |
| An apparatus and method of manufacturing a wavelength converter of an optical fiber type, having a core and a clad covering the core. At least one of the core and clad is made of a nonlinear optical material such that copious amounts of second harmonic light are emitted form a light emit |
| 5291568 |
Optical wavelength conversion module |
March 1, 1994 |
| An optical wavelength conversion module includes a semiconductor laser light source; a lens for focusing semiconductor laser light; and a fiber-type optical wavelength converter with a core and a clad having a refractive index lower than the core. At least one of the core and clad is |
| 5251060 |
Light-source unit |
October 5, 1993 |
| A light source unit for receiving and transmitting information to and from an optical disk or the like, which reshapes an elliptical in cross-section beam of laser light into a circular in cross-section beam of laser light by a beam shaping assembly composed of at least one lens having a |
| 5241413 |
Wavelength converter |
August 31, 1993 |
| In a wavelength converter, nonlinear medium layers containing material having an increased second order susceptibility, and linear medium layers, not containing material having a nonlinear optical characteristic of the second degree, are alternatively layered. A fundamental wave (of whic |
| 5195159 |
Optical wavelength converter device |
March 16, 1993 |
| A light source device that converts a beam of light radiated from an optical fiber-type second-harmonic generating element to a parallel beam of light filled with a bundle of rays up to a central portion of the parallel beam by causing a portion of the beam of light to pass through an |
| 5192579 |
Method of forming thin film on fiber end surface by breaking it in a vacuum |
March 9, 1993 |
| A method for the production of a thin film on an end surface of a fiber made up of a core of an organic material, and a clad made of glass. This method involves the steps of placing the fiber in a vacuum chamber, reducing the pressure in the chamber, cutting the fiber under reduced p |
| 5129029 |
Apparatus and method of producing fiber wavelength-conversion element |
July 7, 1992 |
| A method of coating the ends of a fiber wavelength-conversion element with a macromolecular film. This serves to protect the crystal core and change in quality without changing the state of the core end surface. |
| 5097527 |
Fiber type wavelength converter and module |
March 17, 1992 |
| A fiber type wavelength converter comprising a cladding made of a thin glass tube an inner wall of which is coated with a coupling agent, and a core which is contained in the cladding and made of a single crystal of methyl 4-hydroxybenzoate, which can convert a fundamental wave to a seco |
| 5058981 |
Light source device |
October 22, 1991 |
| A device for generating a second harmonic from a laser source is disclosed. The light from the laser passes through an optical fiber in which the second harmonic is generated. The light exiting from the optical fiber has a conical wave surface which is incident upon a collimating lens. B |
| 5046817 |
Generation of parallel second harmonic light rays using an optical fiber |
September 10, 1991 |
| An arrangement for generating light at a second harmonic of an input light at a fundamental frequency/wavelength. Light at the fundamental frequency/wavelength is generated by a laser and impinges upon an input end of an optical fiber. The optical fiber has a non-linear optical chara |
| 5022738 |
Optical fiber nonlinear wavelength modulator device |
June 11, 1991 |
| A fiber wavelength modulator device which emits a secondary harmonic component by Cerenkov radiation, including a core being a single crystal of a non-linear optical material and a cladding being composed of glass, wherein the relative difference between the core and the cladding has a |
