@article{Reference1,
Abstract = {We have developed an enhanced Littrow configuration extended cavity diode laser (ECDL) that can be tuned without changing the direction of the output beam. The output of a conventional Littrow ECDL is reflected from a plane mirror fixed parallel to the tuning diffraction grating. Using a free-space Michelson wavemeter to measure the laser wavelength, we can tune the laser over a range greater than 10 nm without any alteration of alignment.},
Author = {C. J. Hawthorn and K. P. Weber and R. E. Scholten},
Journal = {Review of Scientific Instruments},
Month = {12},
Number = {12},
Numpages = {3},
Pages = {4477--4479},
Title = {Littrow Configuration Tunable External Cavity Diode Laser with Fixed Direction Output Beam},
Volume = {72},
Url = {http://link.aip.org/link/?RSI/72/4477/1},
Year = {2001}}

@article{Reference2,
Abstract = {We present a review of the use of diode lasers in atomic physics with an extensive list of references. We discuss the relevant characteristics of diode lasers and explain how to purchase and use them. We also review the various techniques that have been used to control and narrow the spectral outputs of diode lasers. Finally we present a number of examples illustrating the use of diode lasers in atomic physics experiments. Review of Scientific Instruments is copyrighted by The American Institute of Physics.},
Author = {Carl E. Wieman and Leo Hollberg},
Journal = {Review of Scientific Instruments},
Keywords = {Diode Laser},
Month = {1},
Number = {1},
Numpages = {20},
Pages = {1--20},
Title = {Using Diode Lasers for Atomic Physics},
Volume = {62},
Url = {http://link.aip.org/link/?RSI/62/1/1},
Year = {1991}}