Abstract

The laser behavior of a centimeter-scale Er3+/Al3+ codoped silica fiber with core numerical aperture and core diameter of 0.15 and 8 μm, respectively, is reported. The core glass was prepared by the sol–gel method combined with high-temperature sintering; it contained Er3+ ion concentration as high as 1.32×1020  ions/cm3 and an Al/Er mole ratio of 10. The high doping homogeneity of Er3+ ions in the fiber core was confirmed by an electron probe microanalyzer element scanning, long Er3+:  I13/24 emission lifetime of 11.4 ms, and low refractive index fluctuation of fiber core (±1×104). The signal gain of fibers with 4.6 cm, 10 cm, and 16 cm lengths was tested in the 1500–1620 nm range. A gain of 7 dB is achieved at 1560 nm in a 16-cm-long EDF under 230 mW pump power. Aimed for CO2 sensor application, the laser behavior of Er/Al codoped fiber was tested at 1572 nm. A slope efficiency of 12% and an output power of 15 mW were achieved in a 10-cm-long fiber under 166 mW absorbed pump power. The newly developed silica fiber is promising for use in high-repetition-rate lasers.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
656  W Er-doped, Yb-free large-core fiber laser

Huaiqin Lin, Yujun Feng, Yutong Feng, Pranabesh Barua, Jayanta K. Sahu, and Johan Nilsson
Opt. Lett. 43(13) 3080-3083 (2018)

High-beam quality, high-efficiency laser based on fiber with heavily Yb3+-doped phosphate core and silica cladding

O. N. Egorova, S. L. Semjonov, O. I. Medvedkov, M. S. Astapovich, A. G. Okhrimchuk, B. I. Galagan, B. I. Denker, S. E. Sverchkov, and E. M. Dianov
Opt. Lett. 40(16) 3762-3765 (2015)

Maintaining broadband gain in a Nd3+/Yb3+co-doped silica fiber amplifier via dual-laser pumping

Zhiquan Lin, Fan Wang, Meng Wang, Lei Zhang, Suya Feng, Guojun Gao, Shikai Wang, Chunlei Yu, and Lili Hu
Opt. Lett. 43(14) 3361-3364 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription