FC1500-Quantum
(Complete Solution for Quantum 2.0 Applications)
All-in-One Rack-Mounted System - with 7 CW Lasers Referenced to Frequency Comb - for Quantum Computing and Optical Clocks
The FC1500-Quantum provides exquisite low noise comb and CW light over a wide frequency range in a fully rack-mounted system.
It is the all-in-one ultra-stable frequency comb-based solution for your Quantum 2.0 application.
Whether you are building an ion/neutral atom-based quantum computer, a quantum optical clock, or an atom interferometry experiment, Menlo tailors your system according to your requirements and delivers the optical engine to operate your physics experiments.
The system consists of an ultra-stable cavity stabilized laser with sub-Hz linewidth from Menlo’s Optical Reference System (ORS) line, an ultra-low-noise optical frequency comb (FC1500-ULN or SmartComb) and as many CW lasers as required for your experiment.
The unique patented Menlo comb technologies allow the transfer of spectral purity, narrow linewidth, and high stability of the ORS throughout the entire comb spectrum, and enable the down-division to the RF domain without any loss of phase coherence.
The purity transfer is future proof, with the residual comb phase noise being orders of magnitude below the highest stability optical reference demonstrated to date.
These features enable the minimization of the Dick effect in optical clocks, high phase coherence to maximize optical and microwave qubit fidelities, and last but not least, 24/7 cycle-slip-free and drift-compensated laser operation.
The FC1500-Quantum is ready to enable and enhance your state-of-the-art Quantum Application.
Features
- Ultra-Low-Noise Comb
- Sub-Hz Linewidth Laser
- Centralized Control
- Complete Solution, ready to be interfaced
with the Physics Package
- Up to 250 MHz Repetition Rate for ample
flexibility on Target CW Laser Frequencies
- High-fidelity Spectral Purity Transfer from
Optical Reference to CW Lasers
- Integration of CW Lasers from Various
Providers
- CW Output Power from mW to W Level
- Fully Rack-mounted
- Full Remote Control
Key Specifications
- Absolute Stability down to <7 x 10-16 (1 s)
- Long-term Stability defined by User-provided Precision Spectroscopy Signal or SI-traceable GPS Receiver Signal (Adaptive De-drifting)
- Ultra-stable μWave/RF Output Signals, Phase coherent to the Optical Reference
- Up to 24 Channels dead-time free Lambda-frequency Counters for Precision Measurement
- OEM Wavemeter for Laser Wavelengths Tuning and Monitoring
Applications
- Complete Solution for Sr, Yb, Ca, Sr+ , Yb+ , Ba+ , Ca+ , Others
- Quantum Computing, Sensing and Simulation
- Optical Atomic Clocks Operation and RF Down-conversion and Time Scale Realization
- Atom Interferometry
- Laboratory Master Reference for Sub-Hz Control of multiple CW Lasers
Additive Values
- Scalability of Optical Power without loss of Fidelity
- Metrological Fiber-link Network ready
System Scheme - FC1500-Quantum
Exemplary System for Neutral Strontium
Electronics Rack
| (1) | 24” touchscreen for full system control and monitoring |
| (2) | SYNCRO 5-HU control electronics for CW lasers and Fiber noise cancellers |
| (3) | SYNCRO 3-HU control electronics for frequency comb |
| (4) | Radio frequency reference distribution |
| (5) | Frequency counter (up to 24 dead-time free channels, Lambda-type) |
| (6) | Pump diode drivers and controllers |
| (7) | PC with real-time signal analyzer |
| (8) | Power supply, Interlock, DC/DC converters |
| (9) | Chiller for optics rack units cooling |
Optics Rack
| (10) | Additional space for further units |
| (11) | Wavemeter (up to 8 channels) |
| (12) | CW lasers (up to 4 ECDLs or 2 High Power Lasers) |
| (13) | CW lasers (up to 4 ECDLs or 2 High Power Lasers) |
| (14) | Extended Optical Detection frequency comb extensions* |
| (15) | Extended Optical Detection frequency comb extensions |
| (16) | Ultrastable photonic μ-wave and radio frequency unit |
| (17) | Spectral Purity Transfer ultra-high stability frequency comb extension* |
| (18) | Ultra-low-noise frequency comb and f-2f interferometer. |
*The XOD is composed by an erbium-doped fiber amplifier and non-linear fibers for the generation of comb lines at the target frequency ranges (from 500 nm up to 2.1 um) and beat detection units for generation of RF beat notes. The SPT unit is similar to the XOD, but has means to ensure even higher stability at longer timescales and may include the most critical CW laser and Fiber Noise Canceller to deliver the sub-Hz and long-term stable light to the Physics package.
Optical Reference System Rack
| (19) | Oscilloscope |
| (20) | Ion getter pump controller |
| (21) | SYNCRO PDH locking electronics and ultra-low-RIN laser with driver |
| (22) | High-finesse Fabry-Perot cavity in vacuum assembly on active anti-vibration platform |
Specifications
| Optical Reference System (ORS) FSR | 1.2 GHz or 3 GHz (Refer to ORS product lines) |
| Optical Reference Stability | <5 x 10⁻¹⁵ at 1s, down to <7 x 10⁻¹⁶ at 1sʳ (ORS option dependent) |
| Residual ORS Phase Noise PSD | <-5 dBc/Hz at 1 Hz; <-50 dBc/Hz at 100 Hz, <-80 dBc/Hz at 10 kHz (ORS option dependent) |
| ORS Spurious | <-20 dBc (ORS-XTAL) |
| Comb Spacing (FSR) | 250 MHz, 125 MHz or 100 MHz |
| Fractional Comb Stability (modADEV)¹ | <1 x 10⁻¹⁷ at 1 s, <5 x 10⁻¹⁸ at 100 sᵗ |
| Fractional Comb Accuracy (relative)¹ | <1 x 10⁻¹⁸ for t > 100 sᵗ |
| Residual Comb lines Phase Noise PSD¹ | <-40 dBc/Hz at 1 Hz; <-60 dBc/Hz at 100 Hz, <-90 dBc/Hz at 10 kHz |
| Comb Linewidth | <1 Hz (with Menlo ORS) |
| CW Laser Spectral Range | Ultraviolet to Infrared (OEM integrated or user provided) |
| CW Laser Power | From mW to Watt level (application and laser dependent) |
| PLLs Behavior | Cycle-slip free for weeks at a time for all phase-lock-loopsᵞ |
¹The comb stability, accuracy and phase noise are qualified by upper-limit measurements against a reference when both combs are phase-locked to an ORS. The absolute accuracy is given by either the user physics-package or the RF reference (e.g., GPS signal).
ʳORS-type and system configuration dependent.
ᵗComb-type and system configuration dependent.
ᵞEnables continuous phase-coherent measurements and uninterrupted spectral purity transfer.
Options
| Reference System | Menlo Systems ORS, ORS-Compact, ORS-Mini |
| Frequency Comb | Menlo Systems FC1500-250-ULN, FC1500-ULNPLUS, SmartComb |
Optical Comb Extensions 500 – 2100 nm Each comb extension is tailored for optimum signal-to-noise ratio | XOD: eXtended Optical Detection unit Comprise high SNR integrated beat detection unit for CW laser phase locking SPT: Spectral Purity Transfer Unit For ultra-high stability operation – relevant for supporting state-of-art optical clocks and beyond |
| Embedded Electronics | Modular Menlo Systems SYNCRO Electronics for phase-locking, signal amplification and distribution. Up to 8 or 12 CW laser controls per 5U SYNCRO unit (laser-type dependent). |
| CW Lasers | ECDLs and amplified systems, DFB-fiber lasers, Ti:Sapphire and other DPSS lasers (we select the optimal solution for your application) |
| Others | FNC: Fiber noise canceller for ultra-narrow linewidth signal delivery to user Physics package; Microwave: Ultra-stable RF and Microwave outputs; GPS: 10 MHz Frequency reference with SI-traceability GPS receiver; WLM-NIR / WLM-VIS: Rack-integrated wavemeter (configuration dependent) |
Requirements
| Operating Voltage | 100/115/230 VAC |
| Frequency | 50 to 60 Hz |
| Power Consumption | ~1 kW (configuration dependent) |
| Cooling Requirements | closed cycle chiller included (rack-mount or separate) |
| Operating Temperature | 22 ± 5 °C |
| Dimensions/Weight | 3×19” racks, each approx. 140 kg (configuration dependent) |
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