Specifications Final .pdf

Statement of Requirements External Cavity Diode Laser (ECDL) at 1572 nm

Background:

The Material Measurement Laboratory’s Chemical Sciences Division Gas Sensing Metrology group has multiple ongoing projects that involve high resolution laser spectroscopy of atmospheric gases, such as water, carbon dioxide, carbon monoxide, and methane. The group typically employs cavity ringdown spectroscopy and photoacoustic spectroscopy in order to produce high quality spectral data products. In order to advance the measurement goals of the group, a high resolution, continuously and widely tunable laser source in the 1.572 μm wavelength region is required.

The Contractor shall provide one (1) portable probe-based External Cavity Diode Laser (ECDL) at 1572 nm that meets or exceeds the following requirements:

Specifications:

The Contractor shall meet or exceed the following minimum specifications for quantity one (1) external cavity diode laser (ECDL) at 2000 nm:

1. A nominal tuning range of 1520nm to 1620nm, with minimum acceptable lower range of 1550nm.

2. Continuous, mode-hop free motored tuning over the entire tuning range

3. Laser linewidth <100 kHz at 5 μs

4. Output power of >25 mW at 1572 nm before fiber coupling and optical isolation

5. Absolute accuracy <150 pm

6. Relative accuracy <10 pm

7. Optical isolation: >60 dB

8. Fast current modulation (AC and DC coupled)

9. Included fiber collimator with >50% coupling efficiency

10. Attached fiber optic must be a PANDA PM fiber with narrow key FC/APC connectors with the slow axis aligned with the key

11. Integrated locking system, allowing top-of-fringe or side of fringe locking

12. Ability to tune laser and operate locking from front panel

13. Motor microstep of 0.5 pm or less in wavelength at 1572 nm

14. Piezo step size of 5 kHz of less in optical frequency

15. USB or serial interface to PC

16. Continuous wave (CW) output

17. A manual must be included (either hard copy or electronic)

Warranty:

The Contractor shall provide, at a minimum, a one-year warranty for the Laser Diode. The warranty shall cover all parts, labor, and travel. The warranty shall commence upon successful Government acceptance. Repair work may be performed at the Contractor’s location.

Delivery

Delivery shall occur within 40 weeks FBO to the following address:

National Institute of Standards and Technology

100 Bureau Dr.

Building 217, Room C103 Gaithersburg, Maryland 20899

Normal duty hours are Monday through Friday, 7:00 a.m. to 3:00 p.m. with the exception of Federal holidays.

Deliverables

The following items, and quantities, shall be delivered. The portable external cavity diode laser shall be shipped directly to NIST at the address provided above. The operations and maintenance manual shall be delivered along with the system or be delivered electronically prior to delivery of the system.

Description Method of Delivery Quantity Due Date

External cavity diode laser Shipped to NIST One (1) Within 40 weeks after award of requirement

Operations and maintenance manual

Shipped to NIST or electronic

One (1) Due with instrument delivery

Acceptance Criteria

Formal acceptance of the system will be given by the Government SME after the Contractor demonstrates that all performance standards in this statement of requirements have been met.

General Information

Safety: The Contractor employee shall be responsible for knowing and complying with NIST installation safety prevention regulations. Such regulations include, but are not limited to, general safety, fire prevention, and waste disposal.

Security: NIST is a restricted campus. An identification badge is required for access for entry into buildings and also is shown to the armed Security Police when entering the campus.

Identification Badges: Contractor employees shall comply with NIST identification and access requirements.

Each Contractor employee shall wear a visible identification badge provided by the NIST Security Office.

Vehicle Registration: All Contractor employees must register their vehicles with the NIST Security Office to gain access to the campus. A valid driver’s license, Government-furnished civilian ID, proof of insurance and current registration must be presented to the NIST Security Office.