A visible extended cavity diode laser for the undergraduate laboratory

Conroy, Richard; Carleton, A.; Carruthers, A. E.; Sinclair, Bruce; Rae, Cameron F.; Dholakia, Kishan

doi:10.1119/1.1285896

Cited by 15 publications

(8 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…37 Grating-feedback diode laser systems provide reliable, tunable (3-10 GHz), narrow-band (<1 MHz) laser light at low cost and are suitable for construction by undergraduates. 16,[33][34][35]38 Tunable diode lasers, current-control circuits, and temperaturecontrol circuits with similar characteristics are also commercially available. 39 Two different types of diodes were used: Hitachi model HL 78516 and Roithner LaserTechnik ADL 78901TX.…”

Section: Experimental Apparatusmentioning

confidence: 99%

Collimated blue light generation in rubidium vapor

Kienlen

Holte

Dassonville

et al. 2013

American Journal of Physics

View full text Add to dashboard Cite

We describe an experiment for generating and characterizing a beam of collimated blue light (CBL) in a rubidium vapor. Two low-power, grating-feedback diode lasers, operating at 780.2 nm (5S1/2→5P3/2) and 776.0 nm (5P3/2→5D5/2), respectively, provide step-wise excitation to the 5D excited state in rubidium. Under the right experimental conditions, cascade decay through the 6P excited state will yield a collimated blue (420-nm) beam of light with high temporal and spatial coherence. We investigate the production of a blue beam under a variety of experimental conditions and characterize the spatial coherence and spectral characteristics. This experiment provides advanced undergraduate students with a unique opportunity to investigate nonlinear optical phenomena in the laboratory and uses equipment that is commonly available in laboratories equipped to investigate diode-laser-based absorption spectroscopy in rubidium.

show abstract

Section: Experimental Apparatusmentioning

confidence: 99%

Collimated blue light generation in rubidium vapor

Kienlen

Holte

Dassonville

et al. 2013

American Journal of Physics

View full text Add to dashboard Cite

show abstract

“…2 requires a light source that emits two beams having different wavelengths. External cavity laser diode (ECLD) is one of the most common configurations of laser diodes to obtain tunable narrow linewidth and wavelength of a laser using a diffraction grating for optical feedback 9 . Thus, it is reasonable to employ ECLDs for the manufacturing of the light source desired here; however, the two different wavelengths need to be precisely controlled.…”

Section: Tandem Ecld: Overviewmentioning

confidence: 99%

Proposing a novel scheme for optical manipulation of objects using interference of two laser beams of different wavelengths

Maruyama¹,

Tagami²,

Okamura³

2007

SPIE Proceedings

View full text Add to dashboard Cite

In this paper a novel scheme for optical manipulation of objects utilizing the frequency difference of two separate lasers is proposed. In this scheme interference fringes moving at constant speed generated from two counter-propagating laser beams are expected to transport small particles trapped. For this purpose a highly stable light source is needed. On the other hand, actuators are nowadays widely used for controlling the position of or moving an object. Among them, piezoelectric actuators are commonly utilized to accurately control the angle of a diffraction grating in an external cavity laser diode (ECLD). However, conventional use of piezoelectric actuators in ECLDs causes difficulty in continuous scanning of the wavelength of an ECLD. Here, the 'tandem ECLD' utilizing an electromagnetically-driven actuator instead of a piezoelectric actuator is proposed based on the theoretical calculation that, when two separate lasers with different wavelengths sharing a common perturbation term are combined, the wavelength of the combined laser can be controlled in terms of the frequency difference of the two lasers. The wavelength shift of a prototype of the 'tandem ECLD' with respect to the current applied to the electromagnetically-driven actuator is measured. It is shown that the wavelength tuning method of an laser diode (LD) using an electromagnetically-driven actuator at low voltage exhibits equivalent performance (2.51nm wavelength shift when 2.58mA applied) to the conventional method that causes wavelength tunability using a piezoelectric actuator.

show abstract

“…In the area of atomic, molecular and optical physics (AMO), experiments involving spectroscopy are a powerful educational component of any laboratory curriculum and can be used to elucidate material in upper-level special-topics courses. [4][5][6][7][8][9][10] With the advent of inexpensive semiconductor diode lasers operating at 780 nm and the ability to fabricate homebuilt, tunable lasers, 11,12 Doppler-free saturated absorption spectroscopy 13 (SAS) of rubidium (Rb) has now become a staple offering of many undergraduate lab courses. [14][15][16][17] This experiment is rich in atomic physics, requires only a modest amount of equipment, can largely be assembled with offthe-shelf optical components, and works well even with a simple, homebuilt semiconductor diode laser.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopy of neon for the advanced undergraduate laboratory

Busch

Cooper

Sukenik

2019

American Journal of Physics

View full text Add to dashboard Cite

We describe a spectroscopy experiment, suitable for upper-division laboratory courses, that investigates saturated absorption spectroscopy and polarization spectroscopy in a neon discharge. Both experiments use nearly identical components, allowing students to explore both techniques in a single apparatus. Furthermore, because the wavelength of the laser is in the visible part of the spectrum (640 nm), the experiment is well-suited for students with limited experience in optical alignment. The labs nicely complement a course in atomic or plasma physics, provide students with the opportunity to gain important technical skills in the area of optics and lasers, and can provide an introduction to radio-frequency electronics. V

show abstract

A visible extended cavity diode laser for the undergraduate laboratory

Cited by 15 publications

References 10 publications

Collimated blue light generation in rubidium vapor

Collimated blue light generation in rubidium vapor

Proposing a novel scheme for optical manipulation of objects using interference of two laser beams of different wavelengths

Spectroscopy of neon for the advanced undergraduate laboratory

Contact Info

Product

Resources

About