Pseudo-random single photon counting for time-resolved optical measurement | Zendy

Qiang Zhang | Zendy; Hock Wei Soon | Zendy; Haiting Tian | Zendy; Shakith Fernando | Zendy; Yajun Ha | Zendy; Nanguang Chen | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Pseudo-random single photon counting for time-resolved optical measurement

Author(s) -

Qiang Zhang,

Hock Wei Soon,

Haiting Tian,

Shakith Fernando,

Yajun Ha,

Nanguang Chen

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.013233

Subject(s) - photon counting , optics , impulse response , picosecond , laser , detector , physics , photon , temporal resolution , laser diode , optical storage , mathematical analysis , mathematics

We report a new time-resolved optical measurement method which combines single photon counting and the spread spectrum time-resolved optical measurement method. A laser diode modulated with pseudo-random bit sequences replaces the short pulse laser used in conventional time-resolved optical systems, while a single photon detector records the pulse sequence in response to the modulated excitation. Periodic cross-correlation is used to retrieve the impulse response. Feasibility of our approach is validated experimentally. A rise time around 150 picoseconds has been achieved with our prototype. Besides high temporal resolution, the new method also affords other benefits such as high photon counting rate, fast data acquisition, portability, and low cost.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research