Differential Method of Diode Laser Wavelength Stabilization

Zhmud, A. A.

doi:10.1143/jjap.40.5947

Cited by 3 publications

(4 citation statements)

References 1 publication

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“…Generally, it can be divided into two categories, namely active stabilization and passive stabilization [8,11,12,13,14,15,16,17]. Active stabilization methods usually involve certain kinds of electronic feedback systems in which variations of some parameters are converted to an electronic signal to stabilize the laser wavelength [13]. The stability of the wavelength with such active stabilization system can be achieved to 10 −9 [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…However, due to complexity and the high-cost of realization, active stabilization methods cannot be applied in a small-sized interferometer. Since the laser diode frequency/wavelength is sensitive to the temperature and supplied current, it is important to apply a current source and temperature controller to stabilize the laser frequency/wavelength, which is called the passive stabilization methods [8,11,12,13,14,15,16,17]. The passive stabilization methods are usually simple and easy implement.…”

Section: Introductionmentioning

confidence: 99%

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Real-Time Correction and Stabilization of Laser Diode Wavelength in Miniature Homodyne Interferometer for Long-Stroke Micro/Nano Positioning Stage Metrology

Cai

Feng

Sang

et al. 2019

Sensors

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A low-cost miniature homodyne interferometer (MHI) with self-wavelength correction and self-wavelength stabilization is proposed for long-stroke micro/nano positioning stage metrology. In this interferometer, the displacement measurement is based on the analysis of homodyne interferometer fringe pattern. In order to miniaturize the interferometer size, a low-cost and small-sized laser diode is adopted as the laser source. The accuracy of the laser diode wavelength is real-time corrected by the proposed wavelength corrector using a modified wavelength calculation equation. The variation of the laser diode wavelength is suppressed by a real-time wavelength stabilizer, which is based on the principle of laser beam drift compensation and the principle of automatic temperature control. The optical configuration of the proposed MHI is proposed. The methods of displacement measurement, wavelength correction, and wavelength stabilization are depicted in detail. A laboratory-built prototype of the MHI is constructed, and experiments are carried out to demonstrate the feasibility of the proposed wavelength correction and stabilization methods.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Real-Time Correction and Stabilization of Laser Diode Wavelength in Miniature Homodyne Interferometer for Long-Stroke Micro/Nano Positioning Stage Metrology

Cai

Feng

Sang

et al. 2019

Sensors

View full text Add to dashboard Cite

show abstract

“…Alexander A Zhmud proposed the idea of developing a laser wavelength stabilization system based on a wedge interferometer [45]. The absence of wavelength modulation during frequency stabilization is one of the advantages of the proposed technique.…”

Section: Introductionmentioning

confidence: 99%

Frequency stabilization of a laser diode by means of an optical wedge etalon

Dobosz¹,

Kożuchowski²

2012

Meas. Sci. Technol.

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A novel laser diode (LD) wavelength stabilization system based on an optical wedge interferometer is presented. The proposed system uses an interference pattern from an external wedge etalon to detect frequency changes via a differential photodetector. Based on the etalon photodetector output signal, the feedback electronic circuit controls the LD current so as to obtain the LD wavelength as close as possible to the value set as a reference. Theoretical basis, design of the prototype system and metrological feasibilities of the device are presented. The absence of wavelength modulation during frequency stabilization, simplicity and low cost are the main advantages of the proposed technique.

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“…The majority of them are complex and expensive. The idea of a simple laser wavelength stabilization system based on the wedge interferometer has been proposed by Alexander A. Zhmud [15]. A very similar technique was applied by J. C. Brasunas [16], employing an uncoated etalon to monitor the laser wavelength and then applying a correcting heating term to the laser to stabilize its wavelength in a varying temperature environment.…”

Section: Introductionmentioning

confidence: 99%

Laser diode distance measuring interferometer - metrological properties

Dobosz¹

2012

Metrology and Measurement Systems

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A novel laser diode based length measuring interferometer for scientific and industrial metrology is presented. Wavelength the stabilization system applied in the interferometer is based on the optical wedge interferometer. Main components of the interferometer such as: laser diode stabilization assembly, photodetection system, measuring software, air parameters compensator and base optical assemblies are described. Metrological properties of the device such as resolution, measuring range, repeatability and accuracy are characterized.

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Differential Method of Diode Laser Wavelength Stabilization

Abstract: This paper is devoted to a new kind of diode laser wavelength stabilization system based on the wedge interferometer. The absence of wavelength modulation is the main advantage of the proposed method.

Cited by 3 publications

References 1 publication

Real-Time Correction and Stabilization of Laser Diode Wavelength in Miniature Homodyne Interferometer for Long-Stroke Micro/Nano Positioning Stage Metrology

Real-Time Correction and Stabilization of Laser Diode Wavelength in Miniature Homodyne Interferometer for Long-Stroke Micro/Nano Positioning Stage Metrology

Frequency stabilization of a laser diode by means of an optical wedge etalon

Laser diode distance measuring interferometer - metrological properties

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