NIST Requirements .docx

NIST Requirements Document Laser cooling system for Rydberg production

I. Background This acquisition is for the Laser Cooling and Trapping Group, in the Quantum Measurement Division and is for three high power laser systems for laser cooling of alkali atoms prior to producing Rydberg arrays. These laser systems will be used as an integral part of our experimental setup in our recently awarded NSF QLCI for robust quantum simulation. The cooling and trapping of atoms requires the use of carefully controlled laser beams, and laser systems are required to add a new atom, 39-K, to our experiment. The experimental program of the group uses these experiments to further research in quantum information processing, quantum simulation, as well as machine learning based control.

Each laser system must be fiber coupled and include complete rack mountable control electronics, including fast digital laser locking with a bandwidth exceeding 1 MHz. Each laser system generates six laser beams for laser cooling atoms and for trapping them in vacuum. This cooling requires stable, well aligned laser beams at a well-defined wavelength, to reach the required level of stability. We require these laser systems to enable us generate ultra-cold atoms for quantum simulation.

II. Minimum Requirements The system shall meet or exceed the minimum requirements 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 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.

The Contractor shall provide the following laser system that meets the following minimum specifications:

1. Lasers must provide 2 W output power from 767 to 770 nm.

2. Mode-hop free tuning range for the system shall be a minimum of 30 GHz.

3. Laser linewidth must be below 60 kHz.

4. Must be fiber coupled with 50% injection efficiency, minimum. High power fiber to be included.

5. The polarization shall be linear out of fiber.

6. Fiber must be preceded by high power optical isolator.

7. In addition, must provide a low power fiber coupled output for locking and monitoring.

8. The system shall include complete control electronics. These electronics must have the following specifications:

a. Control electronics to be fully computer controlled (no manual interaction required in daily operation), connectivity via USB, or ethernet.

b. TWO UNITS: must support

i. 20 kHz bandwidth locking to saturated absorption spectroscopy.

c. ONE UNIT: must support

i. Locking must support dual PID locks for piezo and current (see below).

ii. Locking must control the laser’s piezo voltage (including current feed forward) with 1 kHz bandwidth (minimum).

iii. Locking must control the laser’s fast-current input with a 1 MHz bandwidth (minimum).

iv. Locking must accept bipolar input signal with 10 MHz bandwidth (minimum).

v. Locking must offer auto-relock ability.

III. Delivery Delivery shall be FOB Destination (or equivalent terms, such as INCOTERMS Delivered Duties Paid) are required and shall occur not later than (NLT) 24 weeks ARO.

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:

The National Institute of Standards and Technology 100 Bureau Drive, Building 220 Gaithersburg, MD 20899-1640 IV. Inspection and 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.

Each laser system will be tested by measuring the output power from each power and then locking to an existing laser system and evaluating the linewidth of the resulting beat note. We will confirm the ability to phase lock each laser system, with a fast-signal bandwidth in excess of 1 MHz.

The Government will test, inspect, and accept the equipment onsite within seven (7) business days of the receipt of the laser systems. A visual inspection of the laser system will be performed by the NIST TPOC to identify surface defects or any form of indication that the laser systems 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 laser systems due to defects and/or nonconformance.

V. Warranty The contractor shall warrant the entire system for a period of a minimum of 1 year after receipt of the equipment and shall be in accordance with terms in FAR 52.212-4

VI. 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.

2. The Government anticipates inspection will occur upon:

a. After the testing procedures set forth in this document have been completed