Abstract

Flash-lamp-pumped normal-mode and Q-switched 2.1-μm laser operations of Ho:Tm:Cr:YAG crystals have been evaluated under a wide variety of experimental conditions in order to determine an optimum lasing condition and to characterize the laser outputs. Q-switched laser-output energies equal to or in some cases more than the normal-mode laser energies were obtained in the form of a strong single spike by optimizing the opening time of a lithium niobate Q switch. The increase of the normal-mode laser slope efficiency was observed with the increase of the Tm concentration from 2.5 to 4.5 at. % at operating temperatures from 120 K to near room temperature. Laser transitions were observed only at 2.098 and 2.091 μm under various conditions. The 2.091-μm laser transition appeared to be dominant at high-temperature operations with low-reflective-output couplers and to have an energy-level assignment from 5313 cm−1 to 534 cm−1 or (and) from 5313 cm−1 to 536 cm−1.

© 1993 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Flash-lamp-pumped Ho:Tm:Cr:YAG and Ho:Tm:Er:YLF lasers: experimental results of a single, long pulse length comparison

Mahendra G. Jani, Norman P. Barnes, and Keith E. Murray
Appl. Opt. 36(15) 3357-3362 (1997)

Flash-lamp-pumped Ho:Tm:Cr:YAG and Ho:Tm:Er:YLF lasers: modeling of a single, long pulse length comparison

Norman P. Barnes, Keith E. Murray, and Mahendra G. Jani
Appl. Opt. 36(15) 3363-3374 (1997)

Ho:CaF2 solid-state saturable-absorber Q switch for the 2-μm Tm,Cr:Y3Al5O12 laser

Yen-Kuang Kuo, Milton Birnbaum, Ferruh Unlu, and Man-Fang Huang
Appl. Opt. 35(15) 2576-2579 (1996)

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 (11)

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