An endoscopic laser scalpel system, comprising: a laser source configured to provide laser light for at least one of incision, excision, and ablation of tissue in minimally invasive surgery; and a laryngoscope or endoscope having a distal end configured to be inserted into a body cavity to deliver the laser light to a target tissue therein, an endoscopic head mounted on the distal end of the laryngoscope or endoscope, the endoscopic head comprising: an optical element arrangement comprising at least four optical elements each optical element comprising a reflective optical element configured to reflect light, wherein a first set of optical elements is configured to receive an incident laser beam comprising the laser light from the laser source and expand it into a hollow cylindrical beam of light wider than the incident laser beam, and wherein a second set of optical elements is structured to receive the hollow cylindrical beam of light and focus it into a reflected beam directed to the target tissue, the first set of optical elements comprising a conical mirror configured to receive and reflect the laser light from the laser source; and a conical section mirror configured to receive and reflect the laser light from the conical mirror, thus generating the hollow cylindrical beam of light, and the second set of optical elements comprising a parabolic section mirror configured to receive and reflect the hollow cylindrical beam of light; and a parabolic mirror configured to receive and reflect the laser light from the parabolic section mirror, thus focusing the reflected beam on the target tissue. a laser source configured to provide laser light for at least one of incision, excision, and ablation of tissue in minimally invasive surgery; and a laryngoscope or endoscope having a distal end configured to be inserted into a body cavity to deliver the laser light to a target tissue therein, an endoscopic head mounted on the distal end of the laryngoscope or endoscope, the endoscopic head comprising: an optical element arrangement comprising at least four optical elements each optical element comprising a reflective optical element configured to reflect light, wherein a first set of optical elements is configured to receive an incident laser beam comprising the laser light from the laser source and expand it into a hollow cylindrical beam of light wider than the incident laser beam, and wherein a second set of optical elements is structured to receive the hollow cylindrical beam of light and focus it into a reflected beam directed to the target tissue, the first set of optical elements comprising a conical mirror configured to receive and reflect the laser light from the laser source; and a conical section mirror configured to receive and reflect the laser light from the conical mirror, thus generating the hollow cylindrical beam of light, and the second set of optical elements comprising a parabolic section mirror configured to receive and reflect the hollow cylindrical beam of light; and a parabolic mirror configured to receive and reflect the laser light from the parabolic section mirror, thus focusing the reflected beam on the target tissue. an optical element arrangement comprising at least four optical elements each optical element comprising a reflective optical element configured to reflect light, wherein a first set of optical elements is configured to receive an incident laser beam comprising the laser light from the laser source and expand it into a hollow cylindrical beam of light wider than the incident laser beam, and wherein a second set of optical elements is structured to receive the hollow cylindrical beam of light and focus it into a reflected beam directed to the target tissue, the first set of optical elements comprising a conical mirror configured to receive and reflect the laser light from the laser source; and a conical section mirror configured to receive and reflect the laser light from the conical mirror, thus generating the hollow cylindrical beam of light, and the second set of optical elements comprising a parabolic section mirror configured to receive and reflect the hollow cylindrical beam of light; and a parabolic mirror configured to receive and reflect the laser light from the parabolic section mirror, thus focusing the reflected beam on the target tissue.