Beam Properties Characterization of High-power DFB-MOPA Diode Lasers Emitting at 1064 nm

Thanh-Phuong Nguyen


Detail characterization of the such laser diode is important for the applications. Electro-Optical and spectral characteristics of the high power 1064 nm DFB-MOPA lasers are investigated at room temperature as function of injection current. Beam quality is characterized by waist diameter and far-field divergence angle versus average optical output power. Beam propagation ratio M2 is defined at difference intensity levels from lateral beam profile giving more detail laser behaviors at high power.


high power semiconductor lasers, DFB-MOPA, beam quality

Full Text:



Saydjari Y., et al., Laser Application in Dentistry: Irradiation Effects of Nd:YAG 1064 nm and Diode 810 nm and 980 nm in Infected Root Canals - A Literature Overview, BioMed Research International, 2016. 2016 (Article ID 8421656) 10 pages.

Sun Z., et al., Laser processing of silicon for photovoltaics and structural phase transformation”, Applied Surface Science, 2018. 456, p. 342–350.

McGill M., et al., Cloud Physics Lidar: instrument description and initial measurement results, Applied Optics, 2002. 41(18), p. 3725-3734.

Potter D.R., Analytical devices for the measurement of water vapor in the natural gas process and transmission industry, 6th International Gas Analysis Symposium & Exhibition – GAS2011, 9-11 February 2011, 11 – Beurs-WTC Rotterdam.

Weitkamp C., Lidar: range resolved optical remote sensing of the atmosphere, Springer series in optical science, 2005, p 252-253.

Deleva A. and Grigorov I., Lower Troposphere Observation over Urban Area with Lidar at 1064 nm, Hindawi Publishing Corporation, International Journal of Navigation and Observation, 2011. 2011 (Article ID 769264), 8 pages.

Nguyen T-P. and Tien T. Q., Influence of Resonator Parameters and Thermal Effect on Optical Spectra of Integrated Grating High Power Diode Lasers, Advances in Optics Photonics Spectroscopy & Applications VII, 2012, p. 904-909.

Reng N. and Eppich B., Definition and measurements of high power laser beam parameters, Optical and Quantum Electronics, 1992. 24, p. 973–992.

Sun H., A Practical Guide to Handling Laser Diode Beams, SpringerBriefs in Physics, Springer 2015.

Goldberg L., et al., High-Power, Near-Diffraction-Limited Large-Area Traveling- Wave Semiconductor Amplifiers, IEEE Journal of Quantum Electronics, 1993. 29(6), p. 2028-2043.

Nash F. R., Mode guidance parallel to the junction plane of double heterostructure GaAs lasers, Journal of Applied Physics, 1973. 44(10), p. 4696-4707.



  • There are currently no refbacks.

Editorial Office:

Communications in Physics

1st Floor, A16 Building, 18B Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam

Tel: (+84) 024 3791 7102 


Copyright by