- #1
test1234
- 13
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Hi there, I'm working on fiber lasers and I'm interested in getting up to speed with the topic of mode-locked fiber lasers. However, I can't seem to find resources suitable for me at this current stage, hope that you guys can help recommend a suitable review paper, book or anything that's relevant. Thanks in advance! =)
I guess I can say that I have a rough understanding of the basic principles of mode-locking, which is to select for the appropriate longitudinal modes such that they will interfere constructively and produce high energy pulses. This is achieved by ensuring that the longitudinal modes selected for have a fixed relative phase relationship with each other (i.e. [itex]\phi_n=\phi_0 +n \phi[/itex]). Also, there generally 2 main methods of mode-locking, namely active and passive mode-locking. Active mode-locking requires the use of externally driven modulators to generate mode-locked pulses, whereas in passive mode-locking pulse generation is instrinsic and the absorption (or loss) characteristics are usually dependent on the laser light intensity. (Please feel free to correct me if I've misunderstood the concepts.)
I can understand and derive that mode-locked pulses have a total energy higher than that of a CW laser (with random phase longitudinal modes).
Total energy of n phase-locked longitudinal modes (mode-locked)= [itex]n^2 E_0^{\phantom{0}2}[/itex]
Total energy of n random phase longitudinal modes (CW)= [itex]n E_0^{\phantom{0}2}[/itex]
And I guess that's about all I know...I was looking at the journal paper by Haus, "Mode-Locking of Lasers" but it seems to be beyond what I can grasp currently and thus I'm looking for something in between to bridge the gap...
Looking fwd to your replies. Thanks in advance! =)
I guess I can say that I have a rough understanding of the basic principles of mode-locking, which is to select for the appropriate longitudinal modes such that they will interfere constructively and produce high energy pulses. This is achieved by ensuring that the longitudinal modes selected for have a fixed relative phase relationship with each other (i.e. [itex]\phi_n=\phi_0 +n \phi[/itex]). Also, there generally 2 main methods of mode-locking, namely active and passive mode-locking. Active mode-locking requires the use of externally driven modulators to generate mode-locked pulses, whereas in passive mode-locking pulse generation is instrinsic and the absorption (or loss) characteristics are usually dependent on the laser light intensity. (Please feel free to correct me if I've misunderstood the concepts.)
I can understand and derive that mode-locked pulses have a total energy higher than that of a CW laser (with random phase longitudinal modes).
Total energy of n phase-locked longitudinal modes (mode-locked)= [itex]n^2 E_0^{\phantom{0}2}[/itex]
Total energy of n random phase longitudinal modes (CW)= [itex]n E_0^{\phantom{0}2}[/itex]
And I guess that's about all I know...I was looking at the journal paper by Haus, "Mode-Locking of Lasers" but it seems to be beyond what I can grasp currently and thus I'm looking for something in between to bridge the gap...
Looking fwd to your replies. Thanks in advance! =)