Quantum Technology Platforms
Photonics for cold-atom, ion-trap, and precision-measurement quantum platforms — narrow-linewidth lasers, AOM/EOM modulation, optomechanics, vacuum-chamber interfaces.
Step 1 — Define your goal
What are you trying to achieve?
Pick the experiment / project closest to yours. We'll route you to the right system architecture and BOM.
Step 2 — Confirm the problem
Common project challenges
If any of these sound familiar, you're in the right place. WaveQuanta engineers have seen — and solved — every one of them.
Multi-wavelength laser system complexity
5+ wavelengths for typical neutral-atom platform. Each needs stabilization, alignment, and fiber routing.
Frequency stability requirements
kHz linewidth, sub-Hz drift over hours. Pound-Drever-Hall (PDH) or transfer-cavity locking.
AOM and EOM selection
RF driver, modulation depth, insertion loss — every modulator adds noise and cost.
Fiber coupling and power distribution
Single-mode PM fiber, beam splitting, polarization control across the system.
Vacuum chamber optical interfaces
Viewport AR, magnetic-field-compatible mounts, ultra-high vacuum compatibility.
Optomechanical stability
kHz vibration → frequency noise. Active or passive stabilization required.
Beam shaping for MOT cooling
6-beam configuration with matched intensities and polarizations.
Detection: SPCM, EMCCD, SNSPD?
Single-atom fluorescence vs entangled photon counting — different detection paths.
Step 3 — Understand the system
Typical system architecture
Most projects in this area follow a similar signal flow. Your specific architecture depends on resolution, throughput, and form-factor targets.
Seed laser at the qubit transition wavelength with kHz linewidth and active stabilization.
PDH-locked to high-finesse cavity or atomic reference for sub-Hz long-term stability.
Acousto- or electro-optic modulator for pulse shaping, frequency shifting, gating.
Faraday isolator to prevent back-reflection feedback to the laser.
Single-mode PM fiber routing with beam splitters and polarization control.
Step 4 — Pick the modules
Recommended system modules
These are the building blocks. Each module is a category of products — pick the right brand and grade for your project stage below.
Narrow-Linewidth Laser
Seed laser at the qubit transition wavelength with kHz linewidth and active stabilization.
- ECDL or DFB at qubit wavelength
- kHz linewidth
- PDH-locked stabilization
- Power amplifier (TA / fiber) option
Frequency Stabilization Module
PDH-locked to high-finesse cavity or atomic reference for sub-Hz long-term stability.
- ULE cavity + PDH electronics
- Atomic vapor reference cell
- Digital servo (FPGA-based)
AOM / EOM Modulation
Acousto- or electro-optic modulator for pulse shaping, frequency shifting, gating.
- AOM 80–200 MHz frequency shift
- EOM ≥ 10 GHz bandwidth
- Polarization-maintaining housing
- RF driver matched
Optical Isolator
Faraday isolator to prevent back-reflection feedback to the laser.
- 30–60 dB isolation
- Single-stage / dual-stage
- Magneto-optic core
Fiber Coupling & Distribution
Single-mode PM fiber routing with beam splitters and polarization control.
- PM single-mode fiber
- Fiber splitters / combiners
- Polarization controllers
- FC/APC connectors
Optomechanics — Vibration Damped
Vibration-isolated mounts, kinematic bases, athermalized for stability.
- Vibration-isolated breadboard
- Kinematic mounts (mid-range)
- Athermalized lens tubes
- Vacuum-compatible mounts
Vacuum Chamber Optical Interface
AR-coated viewports, magnetic-field-compatible mounts, UHV compatibility.
- Brewster-window viewport
- Flange-mounted optomechanics
- Non-magnetic SS mounts
- UHV-compatible adhesives
Single-Atom Detection
SPCM, EMCCD, or SNSPD for fluorescence detection of single atoms / photons.
- Single-photon counter (SPCM)
- EMCCD for atom imaging
- SNSPD for entangled photons
- Low-noise electronics
Step 5 — Match your project stage
Choose your project stage
Same modules, three configurations sized for where your project is today. Move up the tiers as you progress from research to validation to OEM.
Research Starter
Single-experiment lab
Quantum-optics beamline for a benchtop experiment. One or two wavelengths, manual locking, off-the-shelf modulators.
- 1–2 narrow-linewidth ECDLs
- PDH-locking electronics
- Manual AOM / EOM
- PM fiber distribution
- Off-the-shelf optomechanics
BOM tier: $80k – $250k
Engineering Validation
Multi-experiment platform
Full multi-wavelength quantum platform. Multi-laser stabilized rack, multi-channel AOM matrix, vibration-isolated table, with full integration.
- 5+ wavelength laser rack (stabilized)
- Multi-channel AOM / EOM
- Fiber distribution + power monitoring
- Vibration-isolated stabilized table
- Vacuum chamber optical interface
- Full integration & alignment
BOM tier: $300k – $1M
OEM Production
Quantum company / national lab
Productized quantum-optics rack for a quantum-computing company or national-lab platform. Locked BOM, factory alignment, supply contract.
- Locked-spec laser rack
- Factory pre-aligned optics
- Integrated rack with fiber distribution
- Vacuum-chamber optical kit
- 5+ year supply contract
- FTE engineer dedicated
BOM tier: $1M+ · contract pricing
Step 6 — Run the numbers
Recommended calculators
Sanity-check your design before talking to an engineer.
Step 7 — Configure the system
Configure your setup with our engineering tools
Two ways to go from "this is what I want to do" to "this is the BOM I need".
Open Quantum Beamline VL
Configure narrow-linewidth lasers, AOM matrix, fiber distribution, and vacuum-chamber interface. Validate frequency stability and power budget.
Launch Virtual LabAsk AI to spec my quantum platform
Describe the platform (atom / ion / quantum optics), required wavelengths, and stability targets. AI proposes a complete laser system.
Open AI ConciergeStep 8 — Anchor SKUs
Featured products for this application
Common picks for this application area. Your final BOM will pull from a wider catalog and be sized to your project tier.
Step 9 — Common questions
Frequently asked questions
Quick answers to the questions our application engineers hear most often.
ECDL or DFB for narrow linewidth?
ECDL: tunable, sub-100 kHz linewidth, sensitive to mechanical vibration. DFB: fixed wavelength, ~MHz free-running but sub-kHz when PDH-locked. ECDLs dominate research; DFB+PDH is winning for compact / industrial quantum systems.
PDH-lock to ULE cavity or atomic reference?
ULE cavity: sub-Hz drift, but expensive ($30K+) and needs vacuum + temperature stabilization. Atomic reference: cheaper, drift-free over hours, but limited to specific transitions. Most clocks use both: cavity for short-term, atom for long-term.
AOM vs EOM — when to use each?
AOM: frequency shift (10s–100s MHz), pulse switching, intensity control. Inserts ~50–100 ns delay. EOM: high-bandwidth phase / amplitude modulation (GHz). Less efficient for frequency shifting. Most platforms use AOMs for power control + frequency shift, EOMs for sideband generation.
Fiber-coupled or free-space distribution?
Fiber: easier alignment, vibration-isolated, but introduces 30–50% power loss. Free-space: lossless and lower-noise, but requires careful kinematic alignment. Most modern platforms use fiber for distribution.
Brewster-window vacuum viewport?
Brewster: zero-reflection at p-polarization, but adds polarization constraint. AR-coated flat: simpler, ~0.5% per-surface reflection. Brewster preferred for high-power MOT beams; AR for general-purpose.
How important is vibration isolation?
Critical. Floor vibration (5–100 Hz) directly modulates fiber length and laser frequency. Active vibration-isolated tables (Newport ST-2 or Thorlabs Nexus) are standard for precision-measurement / clock platforms.
SPCM vs SNSPD for single-photon detection?
SPCM (silicon): 70% efficiency, 50 ps timing, $5K–$10K, room temp. SNSPD (NbN): 90%+ efficiency, <20 ps timing, low dark count, requires 2-4 K cryostat ($100K+). Use SPCM for visible single photons; SNSPD for IR or quantum networks.
Long-term supply for a national-lab quantum project?
WaveQuanta partners on multi-year quantum projects with locked BOM, batch-consistency reports, and engineering change control. We've supplied modules for cold-atom and ion-trap platforms in research labs across Asia, EU, and North America.
Step 10 — Engineering Review
Application Engineering Review
Tell us your application, current setup, and project context. A WaveQuanta application engineer will return initial recommendations within 1 business day.
- 1 Application
- 2 Current setup
- 3 Project & purchase