Referenced Items are not available for this document.
We present experimental results on the performance of antenna-integrated photodiodes intended for use as photomixers to provide a tunable broadband source of terahertz (THz) radiation. In a balanced strain-absorber structure, we show that the introduction of strain has proved effective in enhancing the performance at frequencies above 500 GHz. A comparison of strained and unstrained devices confirms this claim. These structures are integrated with a range of antennas, including log periodic and slot-horn types, designed for wideband THz emission. Using the devices as photomixers for the outputs from a DFB laser and an external cavity laser in the 1550 nm telecom window, tunable emission is demonstrated over the range from 100 GHz to 1.8 THz.
Published in:
Selected Topics in Quantum Electronics, IEEE Journal of
(Volume:17
,
Issue:
1
)
Date of Publication: Jan.-Feb. 2011
- Page(s):
- 202 - 209
- ISSN :
- 1077-260X
- INSPEC Accession Number:
- 11793659
- Digital Object Identifier :
- 10.1109/JSTQE.2010.2049196
- Product Type:
- Journals & Magazines
- Date of Publication :
- 21 June 2010
- Date of Current Version :
- 04 February 2011
- Issue Date :
- Jan.-Feb. 2011
- Sponsored by :
- IEEE Photonics Society
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