Single-frequency microchip Nd lasers

✍ Scribed by Zayhowski, J. J.; Mooradian, A.

• Book ID: 115417243
• Publisher: Optical Society of America
• Year: 1989
• Tongue: English
• Weight: 306 KB
• Volume: 14
• Category: Article
• ISSN: 0146-9592
• DOI: 10.1364/OL.14.000024

✦ Synopsis

Optically pumped, single-frequency, Nd-doped, solid-state lasers have been constructed using flat-flat cavities, which were diced from large dielectrically coated wafers of various crystals. For example, a Nd:YAG laser with a cavity length of 730 ,um has operated at room temperature in a single longitudinal mode from a threshold of less than 1 mW to greater than 40 times the threshold. The slope efficiency was greater than 30%. Heterodyne measurements showed an instrument-limited linewidth of 5 kHz. The microchip lasers demonstrate ways to reduce greatly the cost and complexity of fabricating small lasers and electro-optic devices.