Abstract

We applied laser-diode sheetlike end pumping to a multimode Nd:YVO4 laser and observed high-speed >400MHz modulation of the intensity of chaotic pulsation near 1 MHz. The frequencies of modulation were the beat frequencies for pairs of closely spaced lasing modes. Asymmetric optical confinement and the resultant modal interference are shown to lead to oval-hollow-mode operation in which modal beat notes induce high-speed modulation, the frequency range of which is 2 orders of magnitude higher than the intrinsic relaxation oscillation frequency. Good numerical reproduction of the observed chaotic pulsations and their high-speed modulation was obtained with model equations in which such effects as nonlinear gain coupling among modes and field interference between pairs of modes were included. High-speed pulsations in nonchaotic lasers were also demonstrated.

© 2002 Optical Society of America

Full Article  |  PDF Article
More Like This
Pulsations induced by quantum interference in a microchip solid-state laser operating on a Λ transiton

Kenju Otsuka, Jing-Yuan Ko, Shin-ichi Higashihara, and Jyh-Long Chern
Opt. Lett. 26(8) 536-538 (2001)

Instability in a laser-diode-pumped microchip Nd:YAG laser in a Π scheme

Kenju Otsuka, Jing-Yuan Ko, Tamaki Kubota, Siao-Lung Hwong, Tsong-Shin Lim, Jyh-Long Chern, Ba An Nguyen, and Paul Mandel
Opt. Lett. 26(14) 1060-1062 (2001)

Higher-order photon statistics of single-mode laser diodes and microchip solid-state lasers

Tsong-Shin Lim, Jyh-Long Chern, and Kenju Otsuka
Opt. Lett. 27(24) 2197-2199 (2002)

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Figures (5)

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

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

Equations (1)

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

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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