Сотрудники лаборатории примут участие в конференции Photonics West 2017
- международная выставка-конференция по фотонике, самая большая и авторитетная в этой области. В работе выставки-конференции Photonics West ежегодно принимает участие более 20 тыс. специалистов со всего мира. Организатор выставки-конференции - престижнейшая научная организация Society of Photo-Optical Instrumentation Engineers (SPIE) - Американское Общество оптики и фотоники. Выставка-конференция проходит в выставочном центре The Moscone Center в Сан-Франциско, США. Заведующий лабораторией нелинейной фотоники - проф. С.К.Турицын - является членом исполнительного комитета (executive commitee) конференции LASE в рамках Photonics West 2017 и сопредседателем секции "Real-time Measurements, Rogue Phenomena, and Single-Shot Applications II".
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Сотрудники лаборатории представят на конференции 2 доклада c результатами исследований:
Sergey Kobtsev, Albert G. Nasibulin, Yurii Gladush, Alexey Ivanenko
Mode locking of a fibre laser with a matrix-less carbon nanotube film
Paper 10083-80
This work for the first time reports experimental results on Er fibre laser mode-locked with saturable absorbers based on single-walled matrix-less CN films fabricated by aerosol method. Nearly transform-limited output pulses had duration of 2.7 ps and average power of 1 mW. Measured high-contrast RF output spectra (noise suppression over 70 dB in 1-GHz band) confirm high quality of achieved mode locking. Discussed are details of the aerosol method of matrix-less CN film fabrication and parameters of studied mode-locked fibre laser. Application of matrix-less CN films for mode locking and Q-switching of fibre and other laser types are analysed.
Sergey Kobtsev, Daba Radnatarov, Sergey Khripunov, Ivan Popkov, Valerii Andryushkov
New method for enhancement of contrast of coherent population trapping resonance in Rb vapour
Paper 10119-4
It is proposed to adjust the pumping power via feed-back so as to keep constant the value of a function related to radiation absorption at the D1 line in a 87Rb vapour cell, while forming the coherent population trapping resonance (CPT) as the dependence of the pump radiation intensity upon the frequency difference of a bi-chromatic pumping field. For slowly scanned CPT resonances (scanning frequency of the frequency difference ≤ 1 Hz), the CPT resonance contrast was enhanced by over two orders of magnitude. For dynamically excited CPT resonances (scanned at > 100 Hz), the contrast enhancement factor was tens of times.
