Timeline for Why laser output power fluctuates after passing through two 1x2 fiber optic couplers?
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Jul 6 at 0:36 | vote | accept | Jimski | ||
| Jul 3 at 6:55 | comment | added | Aliceo | Congratulation you made an interferometer! Even if you do not touch fibers the thermal/vibration/etc is changing a little bit the optical length. If you want to stabilize the interferometer you need to ensure the temperature/vibration etc is exactly identical in the two arms of the interferometer. Or you need to take a very low coherent laser to ensure there will be no interferences. | |
| Jul 3 at 0:42 | history | edited | Jimski | CC BY-SA 4.0 |
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| Jul 2 at 19:24 | comment | added | A Nejati | also do you have a waveform showing the shape of the fluctuations? i.e. are they smooth or sharp fluctuations | |
| Jul 2 at 19:23 | comment | added | A Nejati | And how long are the fiber optic legs? | |
| Jul 2 at 19:22 | comment | added | A Nejati | Have you tried with a low-coherence source like an LED to see if there are still fluctuations? | |
| Jul 2 at 18:42 | comment | added | Jimski | I tried mostly with DFB lasers and one test was done with FP 3mW laser diode. The fluctuations occure with both types of lasers, although with the FP laser the range of fluctuations was 15% grater. | |
| Jul 2 at 18:39 | history | edited | Jimski | CC BY-SA 4.0 |
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| Jul 2 at 18:32 | history | edited | Jimski | CC BY-SA 4.0 |
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| Jul 2 at 18:27 | history | edited | Jimski | CC BY-SA 4.0 |
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| Jul 2 at 18:26 | comment | added | A Nejati | Can you specify the type of laser(s) you're using? | |
| Jul 2 at 18:25 | history | edited | Jimski | CC BY-SA 4.0 |
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| Jul 2 at 17:37 | answer | added | JQK | timeline score: 1 | |
| Jul 2 at 17:32 | history | edited | Jimski | CC BY-SA 4.0 |
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| Jul 2 at 17:15 | history | asked | Jimski | CC BY-SA 4.0 |