Dual femtosecond laser based multiheterodyne low coherence interferometry

Author

Kray, Stefan ; Spöler, Felix ; Först, Michael ; Kurz, Heinrich

Author_Institution

Inst. of Semicond. Electron., RWTH Aachen Univ., Aachen, Germany

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

Abstract

We present a high-speed, high-resolution, non-mechanical time-domain method for low coherence interferometry, utilizing multiheterodyne detection via two mode-locked femtosecond lasers. Tomographic depth sensing over 150 mm with 5.9 kHz scanning rates and 8 mum depth resolution is demonstrated.

Keywords

heterodyne detection; image resolution; laser beams; laser mode locking; light interferometry; optical pulse generation; optical tomography; depth 8 mum; dual femtosecond laser; frequency 5.9 kHz; high-resolution image; high-speed technique; mode-locked laser; multiheterodyne low-coherence interferometry; nonmechanical time-domain method; tomographic depth sensing; Coherence; Frequency; High speed optical techniques; High-resolution imaging; Image resolution; Laser mode locking; Optical imaging; Optical interferometry; Signal resolution; Ultrafast optics; (040.2840) Heterodyne; (110.3175) Interferometric imaging; (170.4500) Optical Coherence Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on

Conference_Location

Baltimore, MD

Print_ISBN

978-1-55752-869-8

Electronic_ISBN

978-1-55752-869-8

Type

conf

Filename

5225277