We present an unstable ring optical cavity with disk active element and multipass system. The modeling shows that unstable cavities are preferable for lasers with large fundamental mode size. Lasing with different magnification is demonstrated, the best beam quality is M2=2.5.

© 2019 The Author(s)

PDF Article


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
Login to access OSA Member Subscription