Patents Assigned to E2O Communications, Inc.
  • Patent number: 6832856
    Abstract: Rotate-and-pull mechanisms for fiber optic modules. The rotate-and-pull mechanisms have a lever-actuator to unlatch and withdraw a fiber optic module from a cage assembly or a module receptacle. The lever-actuator pivotally couples to the fiber optic module so that when lever-actuator is rotated about its pivot point, the lever-actuator causes the second actuator to release the fiber optic module from the cage assembly. The lever-actuator includes an actuating-tab to cause the second actuator to move when the lever-actuator is rotated. By pulling the lever-actuator away from the cage assembly, the fiber optic module is withdrawn from the cage assembly. A belly-to-belly mounting configuration is introduced for the rotate-and-pull release fiber optic modules.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: December 21, 2004
    Assignee: E2O Communications, Inc.
    Inventors: Liew C. Chiu, Ron C. Pang, Yong P. Sim, Kee S. Tan, Tat T. Ming
  • Publication number: 20030133667
    Abstract: Rotate-and-pull mechanisms for fiber optic modules. The rotate-and-pull mechanisms have a lever-actuator to unlatch and withdraw a fiber optic module from a cage assembly or a module receptacle. The lever-actuator pivotally couples to the fiber optic module so that when lever-actuator is rotated about its pivot point, the lever-actuator causes the second actuator to release the fiber optic module from the cage assembly. The lever-actuator includes an actuating-tab to cause the second actuator to move when the lever-actuator is rotated. By pulling the lever-actuator away from the cage assembly, the fiber optic module is withdrawn from the cage assembly. A belly-to-belly mounting configuration is introduced for the rotate-and-pull release fiber optic modules.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 17, 2003
    Applicant: E2O Communications, Inc.
    Inventors: Liew C. Chiu, Ron C. Pang, Yong P. Sim, Kee S. Tan, Tat T. Ming
  • Patent number: 6580741
    Abstract: An integrated optically pumped vertical cavity surface emitting laser (VCSEL) is formed by integrating an electrically pumped in-plane semiconductor laser and a vertical cavity surface emitting laser together with a beam steering element formed with the in-plane semiconductor laser. The in-plane semiconductor laser can be a number of different types of in-plane lasers including an edge emitting laser, an in-plane surface emitting laser, or a folded cavity surface emitting laser. The in-plane semiconductor laser optically pumps the VCSEL to cause it to lase. The in-plane semiconductor laser is designed to emit photons of relatively short wavelengths while the VCSEL is designed to emit photons of relatively long wavelengths. The in-plane semiconductor laser and the VCSEL can be coupled together in a number of ways including atomic bonding, wafer bonding, metal bonding, epoxy glue or other well know semiconductor bonding techniques. The beam steering element can be an optical grating or a mirrored surface.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: June 17, 2003
    Assignee: E2O Communications, Inc.
    Inventors: Wenbin Jiang, Hsing-Chung Lee, Yong Cheng
  • Patent number: 6553048
    Abstract: Modulated integrated optically pumped vertical cavity surface emitting lasers are formed by integrating an electrically pumped semiconductor laser and a vertical cavity surface emitting laser (VCSEL) together with a means of direct modulation of the electrically pumped semiconductor laser. In the preferred embodiments, the electrically pumped semiconductor laser is a type of folded cavity surface emitting laser (FCSEL). In a number of embodiments, the FCSEL is partitioned into two sections by a gap in material layers. In these embodiments, one section of the FCSEL is biased so as to maintain the generation of photons at a constant power level to pump the optically pumped VCSEL while the second section of the FCSEL is used for modulation and causes the optically pumped VCSEL to be modulated above the threshold. In another embodiment, an electric-absorption modulator is sandwiched between an electrically pumped FCSEL and an optically pumped VCSEL.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: April 22, 2003
    Assignee: E2O Communications, Inc.
    Inventors: Wenbin Jiang, Hsing-Chung Lee
  • Publication number: 20020076173
    Abstract: Fiber optic transmitter and receiver electrical elements are implemented on separate vertical boards in fiber optic modules. A single optical block implements lenses and reflecting surfaces to minimize manufacturing costs. In one embodiment the receiver and transmitter are mounted to receive and transmit vertical boards respectively to nearly face each other but being offset to avoid optical cross talk. In a second embodiment, receiver and transmitter are mounted parallel with the printed circuit boards to save additional space. The vertical boards have ground planes to minimize electrical cross talk. A shielded housing provides further shielding for EMI. Manufacturing steps of the fiber optic transceiver are disclosed which provide reduced manufacturing costs.
    Type: Application
    Filed: December 20, 2000
    Publication date: June 20, 2002
    Applicant: E2O Communications, Inc.
    Inventors: WENBIN JIANG , Cheng Ping Wei
  • Patent number: 6339607
    Abstract: Modulated integrated optically pumped vertical cavity surface emitting lasers are formed by integrating an electrically pumped semiconductor laser and a vertical cavity surface emitting laser (VCSEL) together with a means of direct modulation of the electrically pumped semiconductor laser. In the preferred embodiments, the electrically pumped semiconductor laser is a type of folded cavity surface emitting laser (FCSEL). In a number of embodiments, the FCSEL is partitioned into two sections by a gap in material layers. In these embodiments, one section of the FCSEL is biased so as to maintain the generation of photons at a constant power level to pump the optically pumped VCSEL while the second section of the FCSEL is used for modulation and causes the optically pumped VCSEL to be modulated above the threshold. In another embodiment, an electric-absorption modulator is sandwiched between an electrically pumped FCSEL and an optically pumped VCSEL.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: January 15, 2002
    Assignee: E2O Communications, Inc.
    Inventors: Wenbin Jiang, Hsing-Chung Lee