A He-Ne laser having eight laser lines in 1.15μm region with a dispersive cavity is reported. The eight lines are at 1.1986 μm, 1.1767 μm, 1.1614μm, 1.1601 μm, 1.1524 μm, 1.1409μm, 1.0844μm and 1.0798 μm respectively. The optimum discharge current has been measured and output power is obtained in th