Abstract

A surface-emission laser device comprises an active layer, cavity spacer layers provided at both sides of the active layer, reflection layers provided at respective sides of the cavity spacer layers, the reflection layers reflecting an oscillation light oscillated in the active layer and a selective oxidation layer. The selective oxidation layer is provided between a location …

Legal parties

Party
Inventors (applicants): Naoto Jikutani, Shunichi Sato
Assignees (initial): Ricoh Company, Ltd. (Tokyo, JP)
Agents: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P. (attorney)

The application was examined by Xinning Niu (USPTO dept. 2828)

Claims

  • 1. A surface-emission laser device, comprising: …
  • 2. The surface-emission laser device as claimed in claim 1 , wherein said selective oxidation …
  • 3. The surface-emission laser device as claimed in claim 1 , wherein said selective oxidation …

International priority data

JP: 2006-299074 / Nov. 2, 2006 (national)
JP: 2006-126072 / Apr. 28, 2006 (national)
JP: 2005-346055 / Nov. 30, 2005 (national)

Cited documents

Patents

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Brief Description of the Drawings

FIG. 1 is a schematic cross-sectional diagram showing a surface-emission laser device according to Embodiment 1 of the present invention; FIG. 2 is a schematic cross-sectional diagram showing …

Description

Technical Field

The present invention relates to surface-emission laser devices, surface-emission laser arrays having the same, electrophotographic systems having such a surface-emission laser device or surface-emission laser array, and optical communication systems …

Cross-Reference to Related Applications

This application is a continuation application of U.S. application Ser. No. 12/717,713, filed Mar. 4, 2010, which is a divisional application of U.S. application Ser. No. 11/815,050, filed Oct. 10, 2007 …

Best Mode for Implementing the Invention

Hereinafter, the present invention will be described in detail for embodiments with reference to the drawings. In the drawings, those parts corresponding to the parts are designated by the same …

More details about Surface-Emission Laser Devices, Surface-Emission Laser Array Having the Same, Electrophotographic System and Optical Communication System

Miscellaneous patent data

The application was examined by Xinning Niu (2828 USPTO department), the assignee classification - a foreign company or corporation, located in Tokyo (JP), the assignee company is Ricoh Company, Ltd., categorized under Having oxidized region as a primary classification, the grant number is 08824517 (publication number), the application publication date is Nov. 20, 2012, the protection scope is defined by 5 claims, the recorded inventor's name is Naoto Jikutani, the grant publication date is Sep. 2, 2014, explained by 52 figures, the patent particularly claims a surface-emission laser device, comprising…, the exemplary patent drawings are Surface-Emission Laser Devices, Surface-Emission Laser, Diagram showing a part of the surface-emission, Schematic cross-sectional diagram showing a part, Schematic cross-sectional diagram showing a surface-emission, the known applicant's name is Jikutani Naoto, the published agent's company is Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P., the invention is named Surface-Emission Laser Devices, Surface-Emission Laser Array Having the Same, Electrophotographic System and Optical Communication System, the application number is 13/682,014 (U.S.), invented by Naoto Jikutani et al., the invention description is illustrated by 46 drawings, similar patents are classified under Cooling arrangements, an organic dye laser, gas laser discharge tubes, solid state lasers, Pulse, in multi-section lasers, Acousto-optic, comprising an excimer or exciplex, having a travelling wave passing through the active medium, Nonlinear device, Arrays of surface emitting lasers, comprising organic materials, Nozzle, Insulating crystal, Plural Q-switches, the claim 1 is exemplary as chosen by the examiner.

Invention classification information

The invention is classified under Semiconductor lasers, using light-emitting diode arrays, having a vertical cavity, Surface-emitting lasers, Arrays of surface emitting lasers, Having oxidized region, Mode locking, Mode suppression, Mode selection, With diffraction grating (Bragg reflector), Nano-optics, e.g. quantum optics or photonic crystals, With vertical output (surface emission), in AIIIBV compounds, e.g. AlGaAs-laser. The designated search classifications include Surface-emitting lasers, Having oxidized region.

Patent details
Publication number 08824517
Publication date Sep. 2, 2014
Kind code B2
Application number 13/682,014
Application date Nov. 20, 2012
Application type U
Application series code 13
National classification 372/46.013
Total number of claims 5
Exemplary claims 1
Number of drawings 46
Number of figures 52
Terminal disclaimer
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