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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 18432–18439

Compact fiber-pigtailed InGaAs photoconductive antenna module for terahertz-wave generation and detection

Sang-Pil Han, Namje Kim, Hyunsung Ko, Han-Cheol Ryu, Jeong-Woo Park, Young-Jong Yoon, Jun-Hwan Shin, Dong Hun Lee, Sang-Ho Park, Seok-Hwan Moon, Sung-Wook Choi, Hyang Sook Chun, and Kyung Hyun Park  »View Author Affiliations

Optics Express, Vol. 20, Issue 16, pp. 18432-18439 (2012)

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We propose a compact fiber-pigtailed InGaAs photoconductive antenna (FPP) module having an effective heat-dissipation solution as well as a module volume of less than 0.7 cc. The heat-dissipation of the FPP modules when using a heat-conductive printed circuit board (PCB) and an aluminium nitride (AlN) submount, without any cooling systems, improve by 40% and 85%, respectively, when compared with a photoconductive antenna chip on a conventional PCB. The AlN submount is superior to those previously reported as a heat-dissipation solution. Terahertz time-domain spectroscopy (THz-TDS) using the FPP module perfectly detects the absorption lines of water vapor in free space and an α-lactose sample.

© 2012 OSA

OCIS Codes
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(260.5150) Physical optics : Photoconductivity
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:

Original Manuscript: May 9, 2012
Revised Manuscript: July 6, 2012
Manuscript Accepted: July 21, 2012
Published: July 27, 2012

Sang-Pil Han, Namje Kim, Hyunsung Ko, Han-Cheol Ryu, Jeong-Woo Park, Young-Jong Yoon, Jun-Hwan Shin, Dong Hun Lee, Sang-Ho Park, Seok-Hwan Moon, Sung-Wook Choi, Hyang Sook Chun, and Kyung Hyun Park, "Compact fiber-pigtailed InGaAs photoconductive antenna module for terahertz-wave generation and detection," Opt. Express 20, 18432-18439 (2012)

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