Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn

1.06-µm Single-Photon-Counting APD
Jan 2007
Princeton LightwaveRequest Info
CRANBURY, N.J., Jan. 4, 2007 -- Princeton Lightwave Inc. (PLI), a provider of semiconductor lasers and detectors for optical communications, instrumentation and defense applications, has introduced an indium-phosphide single-photon-counting avalanche photodiode (SPAD) designed for optimum performance at 1.06 µm.

The PLI 1.06-µm SPAD bridges the performance gap between silicon and conventional indium-phosphide devices, PLI said. Silicon, which reaches its maximum responsivity below 1 µm, suffers from very low detection efficiency at 1.06 µm.

"Conventional indium phosphide SPADs, with a responsivity peak at 1.55 µm, have excellent detection efficiency, but the excess noise generated by the unused spectrum increases the dark count rate at 1.06 µm," the company said in a statement.

The device combines an adjustment in the spectral peak through material engineering with single-photon capabilities stemming from PLI's prior designs for longer wavelengths. The result is a SPAD with peak responsivity at 1.06 µm that enables very low dark-count rates while providing a larger detection efficiency -- by an order of magnitude, compared to silicon, PLI said.

The PLI 1.06-µm SPAD is available in 80 and 200 µm, packaged with a thermoelectric cooler inside a windowed TO-8 can. The low dark-count rate allows operations in either gated or nongated mode. A detection efficiency of 50 percent is achievable.

Applications include low-light YAG laser detection and time-resolved spectroscopy in biomedical, lidar and ladar systems designed for remote sensing and for free-space optical transmission.

For more information, visit:; e-mail:

Princeton Lightwave Inc.
2555 US Route 130 S.
Cranbury, NJ 08512
Phone: (609) 495-2600
Fax: (609) 395-9114


* Message:
(requirements, questions for supplier)
Your contact information
* First Name:
* Last Name:
* Email Address:
* Company:
Address 2:
Postal Code:
* Country:
Phone #:
Fax #:

Register or login to auto-populate this form:
Login Register
* Required
APDbiophotonicsCommunicationsdefensedetectionindium phosphideLADARlaserslidarnanooptical communicationsphotonicsPLIPrinceton LightwaveProductsremote sensingsemiconductor lasersSensors & Detectorssiliconsingle-photonSPADspectroscopyYAG

Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2017 Photonics Media
x We deliver – right to your inbox. Subscribe FREE to our newsletters.
Are you interested in this product?
If you'd like Princeton Lightwave to reach out to you with more information about this product, please supply your email and they will contact you.

Email Address:
Stop showing me this for the remainder of my visit