Simultaneous frequency locking and monitoring using a bi-directional THz quantum cascade laser

B. Mirzaei; N. Van Marrewijk; D Hayton; J. R. Gao; T. Y. Kao; Q. Hu; John L. Reno

Simultaneous frequency locking and monitoring using a bi-directional THz quantum cascade laser

B. Mirzaei^*, N. Van Marrewijk, D Hayton, J. R. Gao, T. Y. Kao, Q. Hu, John L. Reno

^*Corresponding author for this work

Tera-Hertz Sensing

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

We have performed frequency locking of a dual, forward reverse emitting 3rd order distributed feedback quantum cascade laser (QCL) at 3.5 THz. By using both directions of THz emission in combination with two gas cells and two power detectors, we can for the first time perform frequency stabilization, while monitor the frequency locking quality independently. We also characterize how the use of a less sensitive pyroelectric detector can influence the quality of frequency locking, illustrating experimentally that the sensitivity of the detectors is crucial. Using both directions of THz radiation has a particular advantage for the application of a QCL as a local oscillator, where radiation from one side can be used for frequency/phase stabilization, leaving the other side to be fully utilized as a local oscillator to pump a mixer.

Original language	English
Title of host publication	27th International Symposium on Space Terahertz Technology, ISSTT 2016
Publisher	International Symposium on Space Terahertz Technology (ISSTT)
Number of pages	4
Publication status	Published - 2017
Event	27th International Symposium on Space Terahertz Technology, ISSTT 2016 - Nanjing, China Duration: 12 Apr 2016 → 15 Apr 2016

Conference

Conference	27th International Symposium on Space Terahertz Technology, ISSTT 2016
Country/Territory	China
City	Nanjing
Period	12/04/16 → 15/04/16

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@inproceedings{e290637e34d249128bda26c91f8e48cd,

title = "Simultaneous frequency locking and monitoring using a bi-directional THz quantum cascade laser",

abstract = "We have performed frequency locking of a dual, forward reverse emitting 3rd order distributed feedback quantum cascade laser (QCL) at 3.5 THz. By using both directions of THz emission in combination with two gas cells and two power detectors, we can for the first time perform frequency stabilization, while monitor the frequency locking quality independently. We also characterize how the use of a less sensitive pyroelectric detector can influence the quality of frequency locking, illustrating experimentally that the sensitivity of the detectors is crucial. Using both directions of THz radiation has a particular advantage for the application of a QCL as a local oscillator, where radiation from one side can be used for frequency/phase stabilization, leaving the other side to be fully utilized as a local oscillator to pump a mixer.",

author = "B. Mirzaei and Marrewijk, {N. Van} and D Hayton and Gao, {J. R.} and Kao, {T. Y.} and Q. Hu and Reno, {John L.}",

year = "2017",

language = "English",

booktitle = "27th International Symposium on Space Terahertz Technology, ISSTT 2016",

publisher = "International Symposium on Space Terahertz Technology (ISSTT)",

note = "27th International Symposium on Space Terahertz Technology, ISSTT 2016 ; Conference date: 12-04-2016 Through 15-04-2016",

}

Mirzaei, B, Marrewijk, NV, Hayton, D, Gao, JR, Kao, TY, Hu, Q & Reno, JL 2017, Simultaneous frequency locking and monitoring using a bi-directional THz quantum cascade laser. in 27th International Symposium on Space Terahertz Technology, ISSTT 2016. International Symposium on Space Terahertz Technology (ISSTT), 27th International Symposium on Space Terahertz Technology, ISSTT 2016, Nanjing, China, 12/04/16.

Simultaneous frequency locking and monitoring using a bi-directional THz quantum cascade laser. / Mirzaei, B.; Marrewijk, N. Van; Hayton, D et al.
27th International Symposium on Space Terahertz Technology, ISSTT 2016. International Symposium on Space Terahertz Technology (ISSTT), 2017.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Simultaneous frequency locking and monitoring using a bi-directional THz quantum cascade laser

AU - Mirzaei, B.

AU - Marrewijk, N. Van

AU - Hayton, D

AU - Gao, J. R.

AU - Kao, T. Y.

AU - Hu, Q.

AU - Reno, John L.

PY - 2017

Y1 - 2017

N2 - We have performed frequency locking of a dual, forward reverse emitting 3rd order distributed feedback quantum cascade laser (QCL) at 3.5 THz. By using both directions of THz emission in combination with two gas cells and two power detectors, we can for the first time perform frequency stabilization, while monitor the frequency locking quality independently. We also characterize how the use of a less sensitive pyroelectric detector can influence the quality of frequency locking, illustrating experimentally that the sensitivity of the detectors is crucial. Using both directions of THz radiation has a particular advantage for the application of a QCL as a local oscillator, where radiation from one side can be used for frequency/phase stabilization, leaving the other side to be fully utilized as a local oscillator to pump a mixer.

AB - We have performed frequency locking of a dual, forward reverse emitting 3rd order distributed feedback quantum cascade laser (QCL) at 3.5 THz. By using both directions of THz emission in combination with two gas cells and two power detectors, we can for the first time perform frequency stabilization, while monitor the frequency locking quality independently. We also characterize how the use of a less sensitive pyroelectric detector can influence the quality of frequency locking, illustrating experimentally that the sensitivity of the detectors is crucial. Using both directions of THz radiation has a particular advantage for the application of a QCL as a local oscillator, where radiation from one side can be used for frequency/phase stabilization, leaving the other side to be fully utilized as a local oscillator to pump a mixer.

UR - http://www.scopus.com/inward/record.url?scp=85021411125&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85021411125

BT - 27th International Symposium on Space Terahertz Technology, ISSTT 2016

PB - International Symposium on Space Terahertz Technology (ISSTT)

T2 - 27th International Symposium on Space Terahertz Technology, ISSTT 2016

Y2 - 12 April 2016 through 15 April 2016

ER -

Simultaneous frequency locking and monitoring using a bi-directional THz quantum cascade laser

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