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Size: 899
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Size: 2217
Comment: added more considerations
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| = Fiber amplifier = | = Amplifier = |
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| For investigating Ponderomotive effects, we may need ~100 kW circulating in the arm cavities. For this, we are looking at getting an amplifier to boost the 1W input we have right now. Some formal quotes / info from talking to sales reps: | For investigating Ponderomotive effects, we may need ~100 kW circulating in the arm cavities. For this, we are looking at getting an amplifier to boost the 1W input we have right now. |
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| * After talking with NeoLase, one candidate is the NeoVan-2S-HP. Quote and specs: [[attachment:NeoLase_QuoteSpec.pdf|Quote|]]. Paper about this amplifier performance: [[https://doi.org/10.1364/OL.44.000719 | OL.44.000719]] * Optional air cooling in case we want to avoid water cooling. * Need to confirm that the amplifier can be integrated with out Acromag slow control system. * Quote from OpticalEngines: [[attachment:opticalEnginesQuote.pdf|Quote_opticalEngines]] * Spoke with rep from NPphotonics - expected quote is <$30,000 for an amplifier only. * NuFern (now Coherent) does not make amplifiers anymore, only MOPA. |
Some formal quotes / info from talking to sales reps: 1. After talking with NeoLase, one candidate is the NeoVan-2S-HP. * 25k euro. * 30W out for 1W in. * Quote and specs: [[attachment:NeoLase_QuoteSpec.pdf|Quote|]]. * Paper about this amplifier performance: [[https://doi.org/10.1364/OL.44.000719 | OL.44.000719]] * Optional air cooling in case we want to avoid water cooling. * Need to confirm that the amplifier can be integrated with out Acromag slow control system. 1. Quote from OpticalEngines: [[attachment:opticalEnginesQuote.pdf|Quote_opticalEngines]] * 50k$ * maybe we can have something cheaper if we supply 1W instead of their spec of 30 mW? 1. Spoke with rep from NPphotonics - expected quote is <$30,000 for an amplifier only. 1. NuFern (now Coherent) does not make amplifiers anymore, only MOPA. 1. IPG Photonics [[https://www.ipgphotonics.com/en/products/lasers/cw-fiber-amplifiers/cw-fiber-amplifiers/yar-lp-sf-1-100-w | YAR-LP-SF]] * 30 W output for 5 mW input * ask them about 500 mW -> 30 W (44 k$) * quote: [[attachment:30 W amplifier]] ----- ==== Power Calculation ==== P_arm = Plaser * T_PMC * T_IMC * T_FI * alpha_MM * G_PR * T_BS * G_arm (Gautam put some numbers here for the terms please) 1. What should our PMC Finesse be so that its barely enough to satisfy filtering reqs and transmission efficiency? * Suppress angular modes by XX * Suppress laser noise at the 11 & 55 MHz readout frequencies by XX * Maintain a T_PMC > 0.9X 1. What's up with our T_IMC ? * let's clean the IMC mirrors * what's the MM frac between PMC and IMC? 1. Is our T_FI too low? * measure this during the vent when we clean the IMC 1. What is the loss in the PRC? * clipping in the PRC * new PR/SR mirrors ==== Why Fiber and not Free Space ? ==== Because fiber seems to be the way of the future... What's the price / ease-of-use difference for the free space vs fiber? |
Amplifier
For investigating Ponderomotive effects, we may need ~100 kW circulating in the arm cavities. For this, we are looking at getting an amplifier to boost the 1W input we have right now.
Some formal quotes / info from talking to sales reps:
After talking with NeoLase, one candidate is the NeoVan-2S-HP.
- 25k euro.
- 30W out for 1W in.
Quote and specs: Quote.
Paper about this amplifier performance: OL.44.000719
- Optional air cooling in case we want to avoid water cooling.
- Need to confirm that the amplifier can be integrated with out Acromag slow control system.
Quote from OpticalEngines: Quote_opticalEngines
- 50k$
- maybe we can have something cheaper if we supply 1W instead of their spec of 30 mW?
Spoke with rep from NPphotonics - expected quote is <$30,000 for an amplifier only.
NuFern (now Coherent) does not make amplifiers anymore, only MOPA.
IPG Photonics YAR-LP-SF
- 30 W output for 5 mW input
ask them about 500 mW -> 30 W (44 k$)
quote: 30 W amplifier
Power Calculation
P_arm = Plaser * T_PMC * T_IMC * T_FI * alpha_MM * G_PR * T_BS * G_arm
(Gautam put some numbers here for the terms please)
- What should our PMC Finesse be so that its barely enough to satisfy filtering reqs and transmission efficiency?
- Suppress angular modes by XX
Suppress laser noise at the 11 & 55 MHz readout frequencies by XX
Maintain a T_PMC > 0.9X
- What's up with our T_IMC ?
- let's clean the IMC mirrors
- what's the MM frac between PMC and IMC?
- Is our T_FI too low?
- measure this during the vent when we clean the IMC
- What is the loss in the PRC?
- clipping in the PRC
- new PR/SR mirrors
Why Fiber and not Free Space ?
Because fiber seems to be the way of the future...
What's the price / ease-of-use difference for the free space vs fiber?