- Gain: 20 dB
- Bandwidth: ~ 10 MHz
- Saturation P-1dB : ~ -125 dBm
- Noise temperature: ~ 0.5 K*
- Mode tunability: ~ 400 MHz from listed frequency.
* System noise temperature < 1 K requires cryo-HEMT following amplifier.
- Small (~ 50 MHz) shifts in center frequency accomplished by varying pump frequency.
- Larger shifts (up to 400 MHz) via magnetic bias.
- Each amplifier has two modes which can be used interchangeably for enhanced flexibility.
- Standard mode frequencies are 9 GHz and 5 GHz, or 7.5 GHz and 5 GHz.
- Amplifier gain is controlled by amplitude of microwave pump.
- Increase gain for weaker signals or to compensate for noise of following amplifier.
- Decrease gain to maximize dynamic range and bandwidth.
- Stable rf bias is crucial, see application notes for acceptable generators.
Cryoperm and aluminum magnetic shields.
Copper backbone holds amplifier inside shield together with hybrid couplers.
Total size 8.9” H x 2.6” Ø
- Two port amplification with frequency conversion.
- Noiseless frequency conversion.
- Dynamically controllable beam splitter (with frequency conversion).
- Directional amplification.
- Two modes (A and B, at two different frequencies) are available for amplification.
- Connect signal to be amplified to appropriate frequency port (A or B) via microwave circulator (not provided). Terminate other port with cold matched load.
- Bias flux coil with dc current; apply microwave drive tone to pump port.
- Option 1 : Bare amplifier (golden case, bias coil, hybrids, and matched rf cables).
- Option 2 : Bare amplifier + mount + multi-layer magnetic shielding.
All amplifiers are provided fully tested with data sheet and one year off-site warranty.
Phone and email support are available free of charge. On-site training can be purchased.
Quantum jumps of a transmon artificial atom.
Horizontal tick marks every 50 microseconds.
- Realtime qubit and cavity monitoring/feedback :
Ofek et al., Nature 536, 441 (2016).
Leghtas et al., Science 347, 853 (2015).
Sun et al., Nature 511, 444 (2014).
Shankar et al., Nature 504, 419 (2013).
- Quantum measurement :
Hatridge et al.,
Science 339, 178 (2013).
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