Patents Represented by Attorney, Agent or Law Firm Randall C. Furlung
  • Patterned phase shift layers for wavelength-selectable vertical cavity surface-emitting laser (VCSEL) arrays
    Patent number: 6696307
    Abstract: A method is provided, the method comprising forming a first of n masking layers for a device and forming a first of n phase-shift layers for the device using the first of the n masking layers. The method also comprises forming a second of n masking layers for a device, and forming a second of n phase-shift layers for the device using the second of the n masking layers and forming at least n+1 and at most 2n different optical thicknesses for the device using the n masking layers and the n phase-shift layers.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: February 24, 2004
    Assignee: Applied Optoelectronics, Inc.
    Inventors: Wen-Yen Hwang, Klaus Alexander Anselm, Jun Zheng, James N. Baillargeon