SOW_rev.docx

STATEMENT OF WORK/REQUIREMENTS DOCUMENT

Title: Procurement of a Narrow Linewidth, Mode-hop-free Motorized Continuously Tunable External Cavity Diode Laser Requesting Lab: Nanofabrication and Measurement Group, Microsystems and Nanotechnology Division, Physical Measurement Lab

I. BACKGROUND INFORMATION

The Microsystems and Nanotechnology Division (MND) within the National Institute of Standards and Technology’s (NIST) Physical Measurement Lab (PML) develops integrated microsystems by advancing the state of the art in nanofabrication, thereby enabling the transfer of NIST measurement technologies to the industrial, academic, and government communities. The MND’s Nanofabrication and Measurement group performs cryogenic optical microscopy and spectroscopy measurements of solid-state defect quantum emitters in chip-based silicon nanophotonic structures. A motorized tunable external cavity diode laser for a wavelength range between at 760 nm and 790 nm is required for resonant photoluminescence spectroscopy of epitaxial GaAs quantum dots and transmission/reflection spectroscopy of nanophotonic cavities. High resolution, continuously mode-hop free laser wavelength scanning is required for optical spectroscopy of high quality (Q>1e6) nanophotonic optical cavities. Narrow linewidths and the ability to lock to a reference cavity are required for addressing narrow (tens to hundreds of MHz) quantum dot.

II. SCOPE

The Contractor shall deliver a quantity of one (1) Narrow Linewidth, Mode-hop-free Motorized Continuously Tunable External Cavity Diode Laser inclusive of FOB Destination delivery and warranty.

III. MINIMUM REQUIREMENTS

The Contractor shall provide a system that meets all technical specifications identified below. All items must be new. Used or remanufactured equipment will not be considered for award. Experimental, prototype, or custom items will not be considered. The use of “gray market” components are not authorized for sale in the U.S. by the Contractor is not acceptable. All line items shall be shipped in the original manufacturer’s packaging and include all original documentation and software, when applicable.

Line Item 0001:

Description: Narrow Linewidth, Mode-hop-free Motorized Continuously Tunable External Cavity Diode Laser Quantity: 1 A. Technical Specifications

1. The system shall consist of a motorized external-cavity diode laser (ECDL) in a Littman-Metcalfe configuration or equivalent.

2. The system shall provide continuously tunable, single-mode and mode-hope free continuous-wave laser light in a wavelength range between 760 nm and 790 nm or wider. Better consideration will be given to systems that offer a wider continuous tuning wavelength range. Typical quantum dot ensembles have a wide distribution of emission wavelengths, for which a wider range of operation may be desirable. In addition, fabricated nanocavities may display resonances outside of the 760 nm to 790 nm range.

3. The laser shall be single-frequency over the entire operating range.

4. The wavelength repeatability shall be of 10 pm or less.

5. The time-averaged laser linewidth over a period of 5 microseconds shall be of 20 kHz or less. The laser drift over a period of 60 seconds shall be of 5 MHz or less.

6. The Amplified Spontaneous Emission (ASE) background shall be 40 dB or more below the laser peak power.

7. The laser head shall have an integrated optical fiber coupler that allows simple, stable and repeatable laser light coupling into an optical fiber with single-mode operation within the operating range, with FC-APC connectors.

8. The output laser power available into a single-mode fiber with single-mode operation within the operating range shall be of 10 mW or higher over the entire tuning range, obtained through the integrated fiber coupler. Better consideration will be given to lasers offering higher fiber-coupled power. Higher powers are desirable for experiments in which unavoidably high losses are present in optical setups or devices under test.

9. The laser head should feature an integrated isolator providing 30 dB or more of optical isolation and transmission of 85 % or more over the entire laser operating range.

10. Motorized coarse wavelength tuning

a. The system shall offer coarse motorized wavelength tuning over the entire range.

b. The system shall offer motorized continuous mode-hop-free wavelength scanning over the entire range.

c. The maximum continuous mode-hop free wavelength tuning speed shall be of 5 nm / s or more.

d. The motorized wavelength tuning minimum step size shall of 1 pm or less.

11. High resolution laser wavelength tuning and scanning

a. The laser wavelength shall be tunable with no mode hops over a frequency range of 50 GHz or more, around any set wavelength within the specified range, with a maximum rate of 10 Hz or higher.

b. The wavelength tuning resolution shall be of 50 kHz or less.

12. Laser Controller

a. The laser system shall include a controller that allows control and readout of laser current, power, temperature from its front panel.

b. The laser controller shall allow coarse (motor) and fine (piezo) tuning of the laser wavelength directly from its front panel.

c. The controller shall allow the user to perform high-resolution, piezo scanning of the laser wavelength from the control interface. Scan parameters such as amplitude, frequency, shape and offset shall be adjustable directly from the controller’s front panel.

d. The laser controller shall offer one or more analog voltage input and one or more analog voltage output.

e. The controller shall be capable of using analog input signals for high resolution (piezo) control and scanning of the laser wavelength and applied current.

f. In order to simplify experimental setups and unburden spectroscopic measurements of materials and devices, the laser controller shall offer the following capabilities from its front panel:

a) Graphical visualization of internal or external (provided via the analog inputs) signals versus parameters such as laser wavelength, piezo voltage, operating time and others. The visualization interface shall offer control of plotting ranges and traces from the front panel.

b) The laser controller shall allow laser, from the front panel, locking (via Pound-Drever-Hall or equivalent techniques) to an external reference, with an internally generated locking signal and an externally generated error signal.

c) The laser controller shall allow, from the its front panel, scanning and visualization of external reference resonances prior to locking, and also selection of lock points directly on resonance plots on the front panel.

Computer control via USB or TCP/IP shall be provided. All software (standalone and drivers for control via Python, Labview or Matlab) available for controlling the laser shall be provided. Any software updates made within two years of purchase of the laser shall be provided without additional charge.

IV. DELIVERABLES

V. DELIVERY TERMS

Delivery shall be F.O.B Destination and shall occur in accordance with the delivery due dates provided in the above table.

FOB Destination means: The contractor shall pack and mark the shipment in conformance with carrier requirements, deliver the shipment in good order and condition to the point of delivery specified in the purchase order, be responsible for any loss of and/or damage to the goods occurring before receipt and acceptance of the shipment by the consignee at the delivery point specified in the purchase order; and pay all charges to the specified point of delivery. The contractor shall deliver all Line Items to:

National Institute of Standards and Technology Shipping and Receiving 100 Bureau Drive, Building 301 Gaithersburg, MD 20899 C/O/ POC/COR Marcelo Davanco, Building 216 , Room E102

VI. INSPECTION & ACCEPTANCE

In addition to the inspection and acceptance terms articulated in 52.212-4, the Government reserves the right to perform such performance tests and evaluations as defined below to verify specified system performance. Such tests and evaluations, if performed, shall be conducted within the environment that the system is to be operated. The Contractor has the right to be present during the tests and evaluations, if performed, at the Contractor’s expense.

Performance Tests:

1. Measurement of laser power and continuous, mode-hop-free wavelength tunability according to specifications

NIST may choose at its discretion to forego this part of acceptance testing.

A visual inspection of the equipment will be performed by the NIST TPOC to identify surface defects or any form of indication that any equipment was damaged during transport to NIST. The Government shall have sole discretion to require repair or replacement of damaged and/or nonconforming supplies at no cost to the Government. The Government at any time prior to acceptance shall reject the equipment due to defects and/or nonconformance. The vendor is responsible for latent defects discovered any time after final inspection. However, the extent of its liability shall be prorated over the useful life of the equipment.

Ownership of the equipment shall transfer to NIST upon acceptance by the Government.

The Government will test, inspect, and accept or reject the equipment within (insert working days it will take to inspect, accept or reject) of the receipt of the equipment unless otherwise indicated above. The Government reserves the right to conduct quality assurance testing to confirm that a given instrument(s) meets the manufacturer’s and/or the Government’s performance specifications. It is anticipated that the equipment will meet all manufacturer’s specifications and/or the Government’s performance specifications identified in the most recent operations and maintenance manual for each piece of equipment and/or in this document.

VII. WARRANTY

The contractor shall warranty the entire system for a period of a minimum of one year after receipt of the equipment and shall be in accordance with terms in FAR 52.212-4. Warranty shall commence upon acceptance of the system by the Government and at a minimum shall include the following:

VIII. PAYMENT SCHEDULE

Advance payment is not authorized. The Contractor must invoice in arrears according to the payment schedule. The Contractor shall be paid, in accordance with Net 30-day payment terms, upon receipt and acceptance of a proper invoice, in accordance with the following schedule:

1. 100% after installation and acceptance by the TPOC of fully installed system, AND

1. After the successful completion of the testing requirements set forth in this document under section set forth in this document, AND

1. After successful demonstration by the instrumentation that it performs IAW the technical requirements set forth in this document AND

1. After receiving an invoice submitted properly, IAW the purchase order terms and conditions.

NOTE: Partial shipments and partial invoices will not be accepted, unless otherwise requested and accepted by the Contracting Officer prior to award offer. Proposed payment schedules shall be submitted with vendor’s response to the RFQ for consideration.