Experimental research on spectral beam combination of Er3+/Yb3+ co-doped double-clad fiber lasers

被引：0

作者：

Chu X. ^{[1
]}

Zhao S. ^{[1
]}

Wu Z. ^{[1
]}

Shi L. ^{[1
]}

Li Y. ^{[1
]}

Ma L. ^{[1
]}

Zhang D. ^{[1
]}

机构：

[1] Telecommunication Engineering Institute, Air Force Engineering University, Xi'an

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 04期

关键词：

Er[!sup]3+[!/sup]/Yb[!sup]3+[!/sup] co-doped double-clad fiber; Fiber lasers; Laser technique; Spectral beam combination;

D O I：

10.3788/CJL20103704.0929

中图分类号：

学科分类号：

摘要：

Spectral beam combination of two Er3+/Yb3+ co-doped double-clad fiber(EYDF) lasers were experimentally studied through an outer resonator with a blazed grating placed in it. The outer resonator was formed by two dichroic mirrors and a partial reflector. Two EYDFs with different lengths were used as the gain element. A transform lens were employed to locate the output ends of the EYDFs in term of their incidence angle on surface of the blazed grating. The blazed grating was used to select the operating modes of the two EYDF lasers. The wavelength characteristics of a single EYDF laser were tuned experimentally. Stable output of single mode laser was achieved from 1532 nm to 1568 nm. The tunable range was about 36 nm and the 3 dB line width of the output lasers were all less then 0.08 nm. The output powers of the two EYDFs with lengths of 6 m and 8 m respectively were spectrally combined together. The combined output power of 480 mW was achieved on condition that the maximum pump powers coupled into the two fibers were 2.6 W and 4 W, respectively.

引用

页码：929 / 933

页数：4

共 14 条

[1] Chu X., Zhan S., Zhao S., Et al., Research on phase-detecting method for coherent beam combining of fiber laser array, Semiconductor Optoelectronics, 29, 2, pp. 308-312, (2008)
[2] He B., Lou Q., Zhou J., Et al., Phase-locking and high coherent power output of two fiber lasers, Chinese J. Lasers, 33, 9, pp. 1153-1158, (2006)
[3] Cao J., Lu Q., Hou J., Et al., Influence of combining errors in the system for coherent combining of fiber lasers on the far field of output, Chinese J. Lasers, 35, 3, pp. 351-358, (2008)
[4] Chu X., Zhao S., Zhan S., Et al., Spectral beam combination of fiber lasers based on cascaded volume gratings, Acta Optica Sinica, 28, 8, pp. 1538-1542, (2008)
[5] Shay T.M., Benham V., Spring L.J., Self-referenced locking of optical coherence by single detector electronic-frequency tagging, SPIE, 6102, (2006)
[6] He B., Lou Q., Zhou J., Et al., 113-W in-phase mode output from two ytterbium-doped large-core double-cladding fiber lasers, Chin. Opt. Lett., 5, 7, pp. 412-414, (2007)
[7] Chu X., Zhan S., Zhao S., Et al., Analysis of coherent beam combining through superposed volume gratings by coupled wave theory, Opt. & Laser Technol., 40, 3, pp. 505-509, (2008)
[8] Thomas H.L., Liu A., Hoffman P.R., Et al., 522 W average power, spectrally beam-combined fiber laser with near-diffraction-limited beam quality, Opt. Lett., 32, 4, pp. 349-351, (2007)
[9] Chu X., Zhao S., Shi L., Et al., Expansion of the channel number in spectral beam combining of fiber lasers array based on cascaded gratings, Opt. Commun., 281, 15, pp. 4099-4102, (2008)
[10] Fan T.Y., Sanchez A., Coherent(phased array) and wavelength(spectral) beam combining compared, SPIE, 5709, pp. 157-164, (2005)

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