1 / 11

GaAs Based High-Power Photodiodes for Advanced LIGO LIGO-G020370-00-Z

GaAs Based High-Power Photodiodes for Advanced LIGO LIGO-G020370-00-Z. David Jackrel, PhD Candidate Dept. of Materials Science and Engineering Advisor: James S. Harris LSC Conference, LHO August 19 th -22 nd , 2002. Photodiode Specifications. InGaAs vs. GaInNAs. GaInNAs InGaAs.

colby-freeman
Download Presentation

GaAs Based High-Power Photodiodes for Advanced LIGO LIGO-G020370-00-Z

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GaAs Based High-Power Photodiodesfor Advanced LIGOLIGO-G020370-00-Z David Jackrel, PhD Candidate Dept. of Materials Science and Engineering Advisor: James S. Harris LSC Conference, LHO August 19th-22nd, 2002

  2. Photodiode Specifications

  3. InGaAs vs. GaInNAs GaInNAs InGaAs

  4. InGaAs vs. GaInNAs PD Designs 2 m 1 m GaInNAs lattice-matched to GaAs!

  5. Rear-Illuminated PD Advantages • High Power • Linear Response • High Speed Conventional PD Adv. LIGO Rear-Illuminated PD

  6. GaInNAs Photodiode Linearity

  7. GaInNAs PD Efficiency Eff 20% + 30% + 15% = 65% Measured Reflected Transmitted

  8. InGaAs PD: Dark Current

  9. Junction “Passivation” Plasma Etching  Ar, BCl3, Cl2 Polyimide Spinning  Cresol-novolak Resin (AZ 9260 PR)

  10. InGaAs: Polyimide “Passivated”

  11. Future Work • GaInNAs • 2-micron I-Layer • Etching and Passivating • InGaAs • Thinned Substrate • Etching and Passivating • RF Setup • High Power Voltage Source

More Related