TY - GEN

T1 - Comparative studies of new optical feedback concepts for frequency stabilization of laser diodes

AU - Huke, P.

AU - Rinkleff, R. H.

AU - Wicht, A.

AU - Danzmann, K.

PY - 2005/6

Y1 - 2005/6

N2 - Diode lasers under optical feedback conditions are attractive candidates for many applications like spectroscopic experiements. Recent investigations in new optical feedback concepts show new capabilities. The allready known concepts of grating lasers or external cavity lasers [1] exhibit small mode-hop-free tuning ranges with narrow linewidths or complementary properities for concepts comprising a grating. Obviously the combinaton of both concepts could marry narrow linewidths with large continous tuning ranges. We combined a grating with an external cavity placed in the 1st order of diffraction. This concept for optical feedback originally suggested by Belenov et al. [2] uses a resonant three-mirror cavity and a volume-holographic transmission. Our theoretical models predict stable longitudinal single mode operation for various external cavity designs. Investigations on coupling effects were carried out in order to explain measured quantities. We demonstrate a linewidth of 35 kHz with a single mode diode laser operating at 852 nm phase-locked to another laser system that is frequency locked to a Cs-transition. A large continous tuning range in excess of 45 GHz and single mode operation were shown from 829.2 nm to 874.1 nm at constant diode temperature. The external cavity is stabilized to the laser emission by means of a polarization dependent method proposed by Hänsch and Couillaud, leading to a long-term stable lasersystem with the impressive features mentioned above. Additionaly the wavelength of the whole system is convincingly easy to tune.

AB - Diode lasers under optical feedback conditions are attractive candidates for many applications like spectroscopic experiements. Recent investigations in new optical feedback concepts show new capabilities. The allready known concepts of grating lasers or external cavity lasers [1] exhibit small mode-hop-free tuning ranges with narrow linewidths or complementary properities for concepts comprising a grating. Obviously the combinaton of both concepts could marry narrow linewidths with large continous tuning ranges. We combined a grating with an external cavity placed in the 1st order of diffraction. This concept for optical feedback originally suggested by Belenov et al. [2] uses a resonant three-mirror cavity and a volume-holographic transmission. Our theoretical models predict stable longitudinal single mode operation for various external cavity designs. Investigations on coupling effects were carried out in order to explain measured quantities. We demonstrate a linewidth of 35 kHz with a single mode diode laser operating at 852 nm phase-locked to another laser system that is frequency locked to a Cs-transition. A large continous tuning range in excess of 45 GHz and single mode operation were shown from 829.2 nm to 874.1 nm at constant diode temperature. The external cavity is stabilized to the laser emission by means of a polarization dependent method proposed by Hänsch and Couillaud, leading to a long-term stable lasersystem with the impressive features mentioned above. Additionaly the wavelength of the whole system is convincingly easy to tune.

UR - http://www.scopus.com/inward/record.url?scp=42749104842&partnerID=8YFLogxK

U2 - 10.1109/CLEOE.2005.1567919

DO - 10.1109/CLEOE.2005.1567919

M3 - Conference contribution

AN - SCOPUS:42749104842

SN - 0780389743

SN - 9780780389748

T3 - Conference on Lasers and Electro-Optics Europe - Technical Digest

SP - 131

BT - 2005 Conference on Lasers and Electro-Optics Europe

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2005 Conference on Lasers and Elctro-Optics Europe

Y2 - 12 June 2005 through 17 June 2005

ER -