Microdisk lasers on an erbium-doped lithium-niobite chip
Lithium niobate on insulator (LNOI) provides a platform for the fundamental physics investigations and practical applications of integrated photonics. However, as an indispensable building block of integrated photonics, lasers are in short supply. In this paper, erbium-doped LNOI laser in the 1550-n...
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Published in | Science China. Physics, mechanics & astronomy Vol. 64; no. 3; p. 234263 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Beijing
Science China Press
01.03.2021
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Lithium niobate on insulator (LNOI) provides a platform for the fundamental physics investigations and practical applications of integrated photonics. However, as an indispensable building block of integrated photonics, lasers are in short supply. In this paper, erbium-doped LNOI laser in the 1550-nm band was demonstrated in microdisk cavities with high quality factors fabricated in batches by UV exposure, inductively coupled plasma reactive ion etching, and chemomechanical polishing. The threshold and conversion efficiency of the erbium-doped LNOI microdisk laser were measured to be lower than 1 mW and 6.5×10
−5
%, respectively. This work will benefit the development of integrated photonics based on LNOI. |
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ISSN: | 1674-7348 1869-1927 |
DOI: | 10.1007/s11433-020-1637-8 |