Abstract
A semiconductor laser module consists of a LD (laser diode) chip that generates a laser beam, two cylindrical lenses to collimate the laser beam, a high-reflection mirror to produce a large output by collecting the laser beam, a collimator lens to guide the laser beam to an optical fiber and a protection filter to block reflected laser light that might damage the LD chip. The cylindrical lenses used in a semiconductor laser module are defined as FACs (fast axis collimators) and SACs (slow axis collimators) and are attached to the system module to control the shape of the laser beam. The FAC lens and the SAC lens are made of a glass material to protect the lenses from thermal deformation. In addition, they have aspheric shapes to improve optical performances. This paper presents a mold core grinding process for an asymmetrical aspheric lens and a GMP (glass molding press), what can be used to make aspheric cylindrical lenses for use as FACs or SACs, and a protection filter made by using IAD (ion-beam-assisted deposition). Finally, we developed the aspheric cylindrical lenses and the protection filter for a 10-W semiconductor laser module.
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References
J.-h. Lee, The Opt. J. 117, 26 (2008).
D.-k. Lee, H.-w. Kim, D.-h. Cha, H.-s. Lee, H.-j. Kim and J.-h. Kim, J. Korean Soc. Prec. Engin. 27, 22 (2010).
J.-g. Oh, D.-k. Lee, Y.-g. Kim, K.-h. Lee, Y.-s. Park and S.-d. Kang, KSPE 2013 Spring Conference (Jeju, 2013).
P. J. Falter and T. A. Dow, Prec. Engin. 9, 185 (1987).
Eric R. Marsh and Adam J. Schaut, Prec. Engin. 22, 252 (1998).
M. A. Davies, C. J. Evans, S. R. Patterson, R. Vohra and B. C. Bergner, Proc. SPIE 5183, 94 (2003).
R. J. Bejamin, Opt. Engin. 17, 574 (1978).
J. M. Casstevens, Proc. SPIE 159, 10 (1978).
N. J. Brown, R. R. Donaldson and D. C. Thompson, Proceedings of the SPIE, Presented at the SPIE Symposium on Optical Surface Technology (Garmisch Partenkirchen, 1983).
D. P. Atkinson, S. R. Patterson, R. R. Donaldson, J. L. Chrislock and W. T. Estler, Internal Report: Lawrence Livermore National Laboratory (1985).
E. Brinksmeier, O. Reimer and R. Stern, Proceedings of the 10th International Conference on Precision Engineering (ICPE) (Yokohama, July, 2001).
D. C. Thompson, J. L. Chrislock and L. E. Newton, Prec. Engin. 4, 73 (1982).
D.-k. Lee and Y.-s. Yang, J. Korean Phys. Soc. 53, 2527 (2008).
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Oh, JG., Lee, DK., Kim, YG. et al. A study on the optical parts for a semiconductor laser module. Journal of the Korean Physical Society 65, 1536–1541 (2014). https://doi.org/10.3938/jkps.65.1536
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DOI: https://doi.org/10.3938/jkps.65.1536