IP Library › Patent Application 14729998
Patent Application
App. No. 14/729,998

Modelocked Laser

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Quick Facts
Patent No.
US None
App. No.
14/729,998
Abstract

A modelocked laser for generating pulses comprises a laser cavity, wherein the laser cavity comprises a length of hollow core fiber and wherein the length of hollow core fiber is such that the laser cavity supports a repetition rate of the generated pulses below 5 MHz.

Claims (22)

1 . A modelocked laser for generating pulses, comprising a laser cavity, wherein:

the laser cavity comprises a length of hollow core fiber; and

wherein the length of hollow core fiber is such that the laser cavity supports a repetition rate of the generated pulses below 5 MHz.

2 . A modelocked laser according to claim 1 , wherein the hollow core fiber comprises a microstructured optical fiber.

3 . A modelocked laser according to claim 2 , wherein the hollow core fiber comprises a photonic bandgap microstructured optical fiber.

4 . A modelocked laser according to claim 1 , wherein the laser cavity comprises a passive modelocking element.

5 . A modelocked laser according to claim 4 , wherein the passive modelocking element comprises a semiconductor saturable absorber mirror.

6 . A modelocked laser according to claim 1 , wherein the length of hollow core fiber has a length equal to or greater than 50% of the total cavity length.

7 . A modelocked laser according to claim 1 , wherein the length of hollow core fiber has a length equal to or greater than 70% of the total cavity length.

8 . A modelocked laser according to claim 1 , wherein the length of hollow core fiber has a length equal to or greater than 90% of the total cavity length.

9 . A modelocked laser according to claim 1 , wherein the total cavity length is greater than 20 m.

10 . A modelocked laser according to claim 1 , wherein the total cavity length is greater than 100 m.

11 . A modelocked laser according to claim 1 , wherein the laser cavity further comprises a fiber based gain medium.

12 . A modelocked laser according to claim 1 , wherein the laser cavity is an all-fiber laser cavity.

13 . A modelocked laser according to claim 1 , wherein the time duration of the generated pulses is no greater than 20 ps.

14 . A modelocked laser according to claim 1 , wherein the time duration of the generated pulses is no greater than 5 ps.

15 . A modelocked laser according to claim 1 , wherein the time interval between consecutive pulses in the generated pulse train is constant.

16 . A modelocked laser according to claim 1 , wherein the laser cavity comprises a ring cavity.

17 . A modelocked laser according to claim 1 , wherein the laser cavity comprises a linear cavity.

18 . A modelocked laser according to claim 1 , wherein the total cavity length is greater than 40 m.

19 . A modelocked laser according to claim 6 , wherein the total cavity length is greater than 20 m.

20 . A modelocked laser according to claim 6 , wherein the total cavity length is greater than 40 m.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 28, 2017
From: FIANIUM LTD
To: NKT PHOTONICS A/S
Reel/Frame 042174/0541 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 4, 2015
From: GRUDININ, ANATOLY BORISOVICH; ALMEIDA, PAULO; CLOWES, JOHN REDVERS
To: FIANIUM LTD.
Reel/Frame 035787/0255 →