Quad RF Synthesizer (QRF)
The MOGLabs QRF is a quad-channel RF synthesizer that offers the flexibility of computer-controlled DDS generation at an economical per-channel price. It offers a range of functionality for common AOM tasks such as adjustable frequency shifting, low bandwidth modulation, intensity stabilization, and pulse generation. Optional integrated power amplifiers enable most AOMs to be driven directly without the need for external amplification.
The channels are inherently phase synchronous, simplifying phase mod-demod experiments such as IQ-measurement. Each channel as a separate modulation input and can be configured independently. Furthermore, hardware TTL switching permits rapid pulse generation with extremely low jitter.
An integrated display interface simplifies operating the device, and it can be fully computer-controlled over Ethernet or USB using a human-readable control language. Full software suite, including examples in Python, MATLAB and LabVIEW provided.
Features
- - Four RF channels
- - High output power: up to +33dBm per channel
- - Wide frequency range: 10 - 200MHz
- - Analog modulation (AM, FM, PM, PID)
- - External TTL inputs for fast pulse generation
- - Autonomous execution of complicated frequency/power/phase sequences
- - Robust open- and short-circuit protection
- - Ethernet and USB interfaces
Applications
- AOM driver
- Intensity stabilization
- Diamond NV quantum control
- Laser cooling, trapping, spectroscopy
- Bose-Einstein condensation
- Quantum optics: squeezed light
- Electromagnetic transparency, slow light
- Time and frequency standards
Specifications
RF Characteristics
| RF output power | QRF241: 0 to +33 dBm QRF041: 0 to +12 dBm |
|---|---|
| Frequency range | 10 to 200 MHz, 0.12Hz steps |
| Frequency stability | ±25 ppm (0 to 50°C) |
| Phase | 0 to 360°, 14-bit resolution |
| Absolute phase noise | < ‒110 dBc/Hz @ 1 kHz |
| Signal to noise | < ‒95 dBc @ 30 dBm |
| Intermodulation and spurious | < ‒50 dBc |
| Crosstalk between channels | < ‒50dBc |
| RF ‘off’ level | < ‒70dBm |
| External clock | 25 MHz or 500 MHz |
Analogue Input/Output
| Number | 1 input per RF channel (4 total) |
|---|---|
| Function | FM, AM, PM, PID, independently configurable per channel |
| Sensitivity | ± 1V, anti-alias filter at 100kHz, 12-bit resolution |
| Modulation bandwidth (3 dB) | 100 kHz with 2ⁿᵈ order anti-alias |
| Input latency | < 5 µs |
Digital Input/Output
| RF on/off | Software control, front-panel buttons, hardwired TTL |
|---|---|
| RF on/off response time | < 40ns |
| TTL input | 1 per channel, for on/off control or table trigger |
Computer Interface
| Ethernet | 10/100 TP, RJ45 |
|---|---|
| USB | USB2, plug type USB-A |
| Table mode | Up to 4 channels simultaneously (independently or synchronized) |
| Table memory (non-volatile) | 8k entries per channel (frequency, amplitude, phase and duration) |
| Table timing resolution | 5 µs |
Dimensions and Power
| Dimensions, weight | 250 x 79 x 292 mm (W x H x D), 2 kg |
|---|---|
| Power | 30 W (041); 55 W (241) |
MOGLabs 홈페이지
Quad RF Synthesizer (QRF) | MOGLabs
