The CLA-SMA collimating lens is used to convert divergent rays of light into parallel rays. The lens is fabricated from fused silica and can be used over a broad spectral range (UV/Vis/NIR). The CLA-SMA attaches to an SMA 905 connector of a fiber optic patch cord and fiber assemblies. When used with a fiber cord attached to a light source, the CLA-SMA produces a parallel (collimated) beam of light. When the fiber cord is attached to a spectrometer, the CLA-SMA provides a narrow acceptance angle and narrow field-of-view.