Table 1 Comparison of widely tunable Raman lasers.

From: Broadband high-Q multimode silicon concentric racetrack resonators for widely tunable Raman lasers

Work

Platform

Lasing pump threshold (mW)

Lasing slope efficiency

Lasing tuning bandwidth (nm)

33

Diamond

85

0.43%

100

32

Aluminum nitride

8

3.6%

90

30

As2S3 glass

≤3

—

53

31

Ge25Sb10S65

3.25

13.86%

43

34

Silicon

15

26%

83

This work

Silicon

0.4 ± 0.1

(8.5 ± 1.5)%

516

  1. —: not reported in the paper.
  2. Note: the lasing tuning bandwidth is for the first-order Stokes wave.
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