d2:offset_phase_lock_servo
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d2:offset_phase_lock_servo [2018/11/14 17:46] – [Specifications] Michael Radunsky | d2:offset_phase_lock_servo [2019/05/24 15:40] – [Offset Phase Lock Servo] Michael Radunsky | ||
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Please read [[: | Please read [[: | ||
- | [[d2: | + | [[d2: |
+ | [[https:// | ||
=====Description===== | =====Description===== | ||
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=====Specifications===== | =====Specifications===== | ||
<WRAP center round box 550px> | <WRAP center round box 550px> | ||
- | | | **Value** | + | | |
- | |**Min Offset Frequency**(( Low frequency beat-notes are in principle possible with the D2-135-SMA provided the low-frequency beat-note is a square-wave and not sine-wave input and that the loop bandwidth ~10 times lower than your reference frequency. | + | | **Min Offset Frequency**(( Low frequency beat-notes are in principle possible with the D2-135-SMA provided the low-frequency beat-note is a square-wave and not sine-wave input and that the loop bandwidth ~10 times lower than your reference frequency. |
- | |**Max Offset Frequency**| | + | | **Max Offset Frequency** |
- | |**VCO drift**| | + | | **VCO drift** |
- | |**PFD Noise**(( See [[# | + | | **PFD Noise**(( See [[# |
- | |**ω**< | + | | **ƒ**< |
- | |**ω**< | + | | **ƒ**< |
- | |**ω**< | + | | **ƒ**< |
- | |**Servo Output Range**| | + | | **Servo Output Range** |
- | |**Electronics Input / Output Impedance**| | + | | **Electronics Input / Output Impedance** |
- | |**User Adjustable Gain**(( Not including internal gain compensation for N divider. See [[# | + | | **User Adjustable Gain**(( Not including internal gain compensation for N divider. See [[# |
- | |**Max Electronic Beat-Note Input \\ (D2-135-SMA)**| | + | | **Max Electronic Beat-Note Input \\ (D2-135-SMA)** |
- | |**Min Electronic Beat-Note Input \\ (D2-135-SMA)**| | + | | **Min Electronic Beat-Note Input \\ (D2-135-SMA)** |
- | |**Min Electronic Beat-Note S/N \\ (D2-135-SMA)**| | + | | **Min Electronic Beat-Note S/N \\ (D2-135-SMA)** |
- | |**Max Optical Beat-Note Input \\ (D2-135-FC; obsolete)**| | + | | **Max Optical Beat-Note Input \\ (D2-135-FC; obsolete)** |
- | |**Min Optical Beat-Note Input \\ (D2-135-FC; obsolete)**((Approximate value as exact value depends on wavelength of the light and spatial overlap between the lasers.))| | + | | **Min Optical Beat-Note Input \\ (D2-135-FC; obsolete)**((Approximate value as exact value depends on wavelength of the light and spatial overlap between the lasers.)) |
- | |**Front-panel Input Connection\\ (D2-135-FC; obsolete)((D2-135-FC was shipped with an FC to SC multimode patch cord))**| | + | | **Front-panel Input Connection\\ (D2-135-FC; obsolete)((D2-135-FC was shipped with an FC to SC multimode patch cord))** |
- | |**Front-panel Input Connection\\ (D2-135-SMA)**| | + | | **Front-panel Input Connection\\ (D2-135-SMA)** |
- | |**External Reference Input Range**| | + | | **External Reference Input Range** |
</ | </ | ||
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**Coarse Gain (eight-position switch)** | **Coarse Gain (eight-position switch)** | ||
- | The COARSE GAIN sets the overall proportional gain of the circuit without changing the location of any zeros or poles in the loop filter transfer function. The coarse gain adjusts in steps of 6 dB from 0 dB to -42 dB. | + | The COARSE GAIN sets the overall proportional gain of the circuit without changing the location of any corners |
**Servo Output** | **Servo Output** | ||
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=====Understanding the Transfer Function===== | =====Understanding the Transfer Function===== | ||
- | The charge pump in the OPLS outputs a signal proportional to the phase-error and the transfer function is as shown in <imgref opls_side_panel> | + | The charge pump in the OPLS outputs a signal proportional to the phase-error and the transfer function is as shown in <imgref opls_side_panel> |
=====Calculating Phase Noise ===== | =====Calculating Phase Noise ===== |
d2/offset_phase_lock_servo.txt · Last modified: 2023/11/16 00:02 by 127.0.0.1