Requirements and Specifications - Laser linewidth characterization suite.docx

Requirements / Specification Document

Use this document to detail specifications/requirements for an item and/or ancillary services.

TITLE: Laser linewidth characterization suite Requesting Lab/Division/Group: Physical Measurements Lab/Applied Physics Division/Quantum Nanophotonic group (686.10) General Statement of Need Division 686 is involved in a series projects involving development of heterogeneous photonic integrated circuits with on-chip laser sources. Such photonic curcuits are developed for the wavelength range of 400-1000 nm with a specific interest in operation at 780 nm and 980nm wavewlength bands. Two narrow linewidth and widely (mode-hope free) tunable laser sources are needed for optical testing and characterization of the developed photonic circuits. Of special application is frequency linewidth characterization of the on-chip laser sources through a technique called “optical heterodyne”. In this technique the laser system purchased here is tuned to the same wavelength of the on-chip laser. The optical beams of the two lasers are mixed on a photodiode and the linewidth of the mixed signal is measured in the radio frequency domain to characterize the frequency noise performance of the on-chip photonic laser. Other applications are optical testing and characterization of high-quality microring resonators for development of narrow linewidth integrated photonic mirrors, filter, and nonlinear photonic devices. Laser system one is required to provide mode-hop free tuning in the wide tuning range of 750 nm – 790 nm. Laser system 2 is required to provide mode-hop free tuning in the wide tuning range of 920 nm – 990 nm. Both lasers are required to have fiber-coupled outputs to polarization maintaining fibers and intenral optical isolators with > 45 dB isolation over the entire operating bands to block back-reflections from entering the lasers’ cavity. We require two independent laser systems in “Manufacturer New” condition with two independent emission heads and separate electrical control units for each laser.

Items and/or Ancillary Services

Item 1: Mode-hop free, widely tunable, laser source at 980 nm Quantity: 1 Specifications: 1. The laser must be an electrically pumped diode.

2. System is required to be delivered with all-digital control electronics

3. Tuning range: Continuously tunable in the wavelength range of 920 nm to 990 nm, fully mode-hop free tuning is required.

4. Require fiber-coupled output to polarization maintaining fiber with FC/APC connector

5. Output power: larger than 17 mW coupled to the output fiber over the entire range with maximum power of larger than or equal to 35 mW.

6. Maximum wavelength tuning speed of 10 nm/sec or larger is required

7. Absolute wavelength accuracy of less than 100 pm

8. Relative wavelength repeatability of less than 10 pm

9. Optical Linewidth: Less than 1 kHz (instantaneous) , Less than 10 kHz (Integrated at 5 us)

10. Mechanical motor step size of better than or equal to 0.3 pm

11. Piezo-electric tuning range of larger than or equal to 55 GHz

12. Optical isolation: dual-stage, larger than 60 dB over the entire range

13. The laser system needs to be equipped with required options to lock and stabilize up to four external lasers on the all-digital control electronics.

13.1. Each external laser channel is required to have two PID circuits for current and piezo control.

13.1. We require capability for Lock-In signal generation for “top-of-fringe” locking.

14. The all-digital control electronics is required to have the option or come with an external module to accept an external RF reference signal for phase locking of the diode laser and linewidth reduction.

14.1. We require the ability to lock the laser diode to external high-finesse cavities

14.1. The control electronics needs to support PDH-locking of the laser diode

15. A minimum manufacturer warranty of 1-year or 3000 operating hours is required

Separately Priced Options and Services:

Item 2: Mode-hop free, widely tunable, laser source at 780 nm Quantity: 1 Specifications:

1. The laser must be an electrically pumped diode.

2. System is required to be delivered with all-digital control electronics

3. Tuning range: Continuously tunable in the wavelength range of 750 nm to 790 nm, fully mode-hop free tuning is required.

4. Require fiber-coupled output to polarization maintaining fiber with FC/APC connector

5. Output power: larger than 14 mW coupled to the output fiber over the entire range with a max power of larger than 20 mW

6. Maximum wavelength tuning speed of 10 nm/sec or larger is required

7. Absolute wavelength accuracy of less than 90 pm

8. Relative wavelength repeatability of less than 10 pm

9. Optical Linewidth: Less than 0.5 kHz (instantaneous), Less than 10 kHz (Integrated at 5 us)

10. Mechanical motor step size of better than or equal to 0.3 pm

11. Piezo-electric tuning range of larger than or equal to 60 GHz

12. Optical isolation: dual-stage, larger than 45 dB over the entire range

13. The laser system needs to be equipped with required options to lock and stabilize up to four external lasers on the all-digital control electronics.

13.1. Each external laser channel is required to have two PID circuits for current and piezo control.

13.2. We require capability for Lock-In signal generation for “top-of-fringe” locking.

14. The all-digital control electronics is required to have the option or come with an external module to accept an external RF reference signal for phase locking of the diode laser and linewidth reduction.

14.1. We require the ability to lock the laser diode to external high-finesse cavities

14.1. The control electronics needs to support PDH-locking of the laser diode

15. A minimum manufacturer warranty of 1-year or 3000 operating hours is required

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Service Requirements / Item Specifications

Planning Considerations ☒ N/A ☐ List any visits required to allow potential vendors to see site specific constraints.

[Explain requirement here] ☐ US citizen required on-site (foreign nationals require preregistration 30 days prior) ☐ Vendor rep on-site more than three days ☐ Other considerations: [List other considerations to ensure an accurate quote]

Shipping & Delivery ☐ N/A Standard shipping Shipping criteria:

☐ Partial delivery acceptable ☐ Direct delivery to building required [Explain need for requirement here] Building has: ☐ Loading dock ☐ Containerization preference: [Choose container] Other requirements: [List any other requirements here] Delivery date criteria:

☒ Delivery of goods, installation, and training shall be completed no later than: 30 Weeks ARO ☐ Deliver no earlier than: [Insert date here] ☐ Other: [List other shipping, delivery, or specil requirements]

Electronic Media ☒ N/A [Enter electronic media requirements by item here.] ☐ Software ☐ Electronic manuals ☐ License Key ☐ Other: [List any other Electronic Media requirements here] [Enter email address for software delivery here]

Installation ☒ N/A [Enter installation requirements by item here.] ☐ Vendor technician on site ☐ Rigging ☐ Uncrating / Unpackaging ☐ Removal of packaging material ☐ Equipment set up ☐ Start-up services ☐ Turn key installation ☐ Other [Enter details here.] Note: When installation is required, TPOC or COR shall be the coordination point.

Facility / Utility Considerations ☒ N/A No utility or facility requirements.

☐ OFPM Work Order Number(s) [List any Work Order Number(s) here] ☐ Power available Voltage: [Enter voltage here] (V) Max Current: [Enter max current draw here] (A) Phase: [Choose phase] Frequency: [Typically 60Hz] (Hz) NEMA Plug Type: [Enter plug type here] (i.e.: NEMA L5-20P) Environment: [Choose environment] Other power consideration: [List any other power considerations here] ☐ Utility connections: [List relevant available utilities, pressure(s), and flowrate(s)] ☐ Other considerations: [List other considerations to ensure an accurate quote]

Warranty ☐ N/A Base Manufacturer Warranty is acceptable [If you require an Extended Manufacturer Warranty, describe the warranty requirements per item here.] What is included?

☐ Labor ☐ Parts ☐ Travel ☐ Cost and liability for returns ☐ Other: [Enter other requirements here] ☒ Warranty length: 1 Year Period Length:1 Year

Training ☒ N/A No training requirements ☐ On-site ☐ Off-site location: [Enter location(s) here] ☐ Number of trainees: [Enter number of trainees here] Scope of training:

☐ Operations ☐ Maintenance ☐ Troubleshooting ☐ Safety ☐ Other: [Enter other scope requirements here] ☐ Training materials to be provided: [Describe requirement here] ☐ Other: [Enter other training requirements here] Note: When training is required, TPOC or COR shall be the coordination point.

Inspection and Acceptance ☐ N/A System must meet all technical specifications upon delivery.

We estimate 2 weeks to set up and evaluate performance metrics due to limited laboratory access.

☐ Planned government acceptance testing (7 business days) ☒ Gov’t acceptance expected to take longer than 7 business days: 14 Days ☐ Inspection and acceptance plan: [Explain here] ☐ Other: [Enter other requirements here]

Maintenance ☒ N/A none Period Length: [Ex. month, 6 month, year etc.] What is included?

☐ Labor ☐ Spare parts ☐ Consumables ☐ Travel ☐ Cost and liability for returns ☐ Software updates ☐ Manuals ☐ Service plan length: [Enter service plan length here] ☐ Other: [Enter other requirements here] ☐ Requirements: [Enter requirements here] (i.e.: onsite within 72 hours, etc.)

Government Furnished Material / Equipment ☒ N/A none ☐ Samples for testing ☐ Government equipment which will leave gov't site (TPOC must coordinate with division property custodian) Serial Number: [Enter Serial Number here] Description: [Enter description here] NIST property number: [Enter NIST property number here] ☐ Other: [Enter other details here]

Travel ☒ N/A none ☐ Explain: [Explain here] ☐ Other: [Enter other requirements here] Vendor: To the maximum extent possible, include as part of appropriate sections above (maintenance, repair, etc.). Otherwise, it will be a separate line item, reimbursable per the Federal Travel Regulation.

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Requirements / Specifications: Laser linewidth characterization suite Version 1.0 (2019) Double-click on for further assistance.

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