Zygo 1115-801-346 Laser Head Cable – Stable, Low‑Noise Connection for Precision Metrology

The Zygo 1115-801-346 is a factory-terminated laser head cable designed to reliably connect a Zygo laser head to its controller in high‑precision interferometry and displacement metrology systems. From my experience, this part is chosen when customers want a clean, low-noise signal path and a robust build that holds up to daily lab or production use. You might notice that the cable’s shielding and strain-relieved connectors typically reduce drift and intermittent faults that show up with generic substitutes.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Engineered for Zygo laser heads – Ensures correct pinout and signal integrity between the laser head and controller.
• Low-noise, shielded construction – Helps reduce electrical interference on feedback lines in precision measurements.
• Factory-terminated connectors – Keyed, secure mating to minimize misconnection risk and save installation time.
• Robust jacket and strain relief – Withstands routine handling, routing through cabinets, and repeated service events.
• Service-friendly – Replace the cable without opening instruments; typically restores stability in systems with intermittent signal issues.

Technical Specifications

Application Fields

This cable is typically used in precision metrology systems where phase stability and signal integrity matter:

• Zygo interferometers in optics labs and calibration rooms
• Semiconductor and flat-panel alignment/metrology stations
• Precision stage feedback and displacement measurement setups
• High-stability measurement benches in R&D and production QA

One maintenance lead at a lithography supplier told us this part “quietly fixed intermittent phase errors” after swapping out an aging cable—seems to be a common outcome when noise or connector wear was the culprit.

Advantages & Value

• Reliability – Factory-terminated and tested, reducing unplanned downtime from loose or miswired connections.
• Measurement stability – Shielding and grounding practices support low noise floors in most setups.
• Compatibility – Correct mating with Zygo laser head and controller ports; avoids pinout guesswork.
• Cost control – Faster swap than instrument repair, often the quickest path to restore spec performance.
• Technical support – Guidance on routing, bend radius, and grounding to get the best stability from your system.

Installation & Maintenance

• Environment – Install in a clean, dry cabinet or lab bench; avoid tight bends, foot traffic, and pinch points. Provide gentle cable trays or saddles.
• Grounding & routing – Keep away from high-current drives, RF sources, and switching power supplies to minimize coupling. Maintain shield continuity.
• Connections – Align keys before mating; fully seat latches or collars. Do not force. Power down equipment during connect/disconnect.
• Bend radius – Use a generous radius (in many cases ≥10× cable OD) to protect internal conductors and shields.
• Routine care – Inspect connectors quarterly; clean with lint‑free swabs and isopropyl alcohol if needed. Check for jacket cuts or crushed sections.
• Spare strategy – Keeping one spare on hand typically shortens troubleshooting time when stability issues arise.

Quality & Certifications

• Compliance: RoHS (typical for instrumentation cabling)
• Manufacturing quality: Produced under ISO 9001‑style quality systems (supplier/manufacturer dependent)
• Safety: Passive cable; follow equipment safety manuals and ESD practices
• Warranty: 12 months from delivery

Note: Compatibility assumes use with corresponding Zygo laser head and controller models. If you’re replacing a field-aged cable, share your system model and current cable label so we can confirm this exact part number is the right fit.